Fireball swarms from such entries occasionally are misperceived by some witnesses as bright lights on a single large object. I'd be interested in hearing about any such description from witnesses this time.
I watched this last night. It looked like a big ball with a tail and then broke into 3 pieces. Bigger piece in the middle and 2 smaller 1s on the sides. Was neat to see
I was among a dozen to twenty amateur astronomers setting up telescopes on a field at the Central Star Party near Hastings, Hawkes Bay, NZ, nearly 10 minutes after sunset (7.58 U.T.). Someone yelled, "Look to the north! We immediately saw a cluster of orange/yellow streamers with bright heads moving slowly south. There were initially seven or so before the numbers dropped down to just the brightest component. Given that the objects started at approx. 15 degrees above the horizon and situated in the north east in still light blue sky ( the darker Earth's shadow and the 'Belt of Venus,' the pinkish band that sits on the top of the Earth's shadow, were below the debris) in the first 15 - 20 seconds the brightest part may have been on a par with Venus at its brightest, i.e. Magnitude -4.4. There were several explosive out bursts that shed more, smaller bits before the object seemed to disappear at around due east. A few seconds later there was another, larger explosion that left an enduring smoke ring which remained visible for up to 20 minutes as a discrete spot about 20 arc minutes across. The magnitude at this time was closer to -7.0! If this had happened 90 minutes later when the sky was dark the object would have cast shadows! The object broke up into another group of 5 or 6 objects as it faded out in the SSW direction. At its greatest elevation the object was no higher than 20 degrees. We were fortunate to have the best seats in the house as we saw the whole event from side on and the object was always at a comfortable viewing height. The only down side was that none of us had cameras or even cell phones handy! In 45 years of active, amateur astronomy I have never seen anything like it, and I have seen a lot!
I and family members had seen the blazing light around 8 o'clock and then there was another around 10 o'clock.If it was a satellite why did we see it twice?The second one was going upwards not like the first one which was going down
Unknown, Where were you, and in what direction were you looking? How high in the sky (how many hand spans at arm's length) was the object? How bright was each object, e.g. as bright as the Full Moon, Quarter Moon, Crescent Moon, Venus, Jupiter, the brightest star? All of these things need to be known before anyone can answer your questions.
That's very cool, Ian. I observed it from Ohiwa Beach at approximately 8.00 U.T. (but it could have been more like 7:55). It first appeared as a single object about 20 degrees above the horizon in the north. My first impression was that it might be a flare from out at sea. But it got bigger and more luminous. I thought it peaked at magnitude -6 or so before passing overhead and disappearing to the south. Its shape became sort of elongated and it appeared to fragment into at least two pieces. It might have lasted about 30 seconds or so but the trail remained visible for some time after that. Unfortunately, I didn't hear anything. At the time, I was certain it couldn't have been a meteor. So it's nice to be vindicated!
Thanks Josh. It is good to see that our magnitude estimates are fairly close. We may have had a better view of the last explosive episode, but you caught it from the start. I get the feeling that the shredded object we saw was what the cricket cameras captured so well. I also suspect that the video cameras at the cricket are fairly long focal ratio affairs as they make the sky look quite dark compared to the short focal ratio, widefield cell phone cameras, some of which struggled to get contrast.
We also saw another event nearly 1 hour and 15 minutes later (~22:15 local time) in the same area of the sky. We were camping between Oceans Beach & Kauri Mountain out Whangarei Heads. Directly out to sea from that location. It seems so weird that there would be a second event, albeit less spectacular.
Scott, there was a lot of meteor activity on Saturday night. I observed through to 2.30am the next morning. The early evening saw plenty of satellites as well, which is normal. There was also a good pass of the ISS (International Space Station)in the north, mid evening. Quite a memorable night all round.
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I saw that on TV and further read about it on another blog named "Humax Direct Discount Codes" I couldn't actually believe that it was a fireball as it looks like a some kinda firework.
[Image]
image from Fox News broadcast
The image above is a still image from TV-footage shot during the January 5th 2019 cricket match of Sri Lanka against New Zealand at Mount Maunganui, New Zealand. The camera captured a bright, very slow, copiously fragmenting fireball that occurred during the match. Here is the actual footage:
From the video footage, the event had a duration of at last 1 minute, and likely longer. The event was widely seen and reported from New Zealand: more images and more noteworthy video footage, as well as descriptions, can be found in this news article from the New Zealand Herald.
From the footage it is clear that this is a space debris reentry: the event is too slow and of too long duration to be a meteoric fireball.
From a Sri Lankan tv-broadcast of the cricket match, which features a clock in the imagery, the time of the event can be established as 5 Jan 2018 at 07:58 UT (Sri Lanka has a time difference of 5:30 with GMT):
[Image]
image from Lotus TV broadcast
From the time and location, the event can be identified as the reentry of Kosmos 2430
(2007-049A), a defunct Russian US-K Early Warning satellite launched in
2007. Time and location match well with a near perigee pass of this object over New Zealand. The
map below shows its predicted position for 08:00 UT on Jan 5 (movement is from top to bottom):
[Image]
click ap to enlarge
CSpOC at the time of writing (5 Jan 2019 14h UT) has a reentry TIP for 6:41 ± 4 m UT on its webportal Space-Track. This is 1h 47m, or one revolution, earlier than the New Zealand sightings.
Nevertheless, I am fully convinced that the event is Kosmos 2430 reentering - the match is too good, and the footage clearly suggests an artificial object reentering from earth orbit. So why the mismatch with the CSpOC TIP?
Kosmos 2430 was in a highly elliptical orbit with perigee over the southern hemisphere. In the diagram below, we see the apogee altitude (the blue line) quickly diminishing in the days before reentry, due to the drag experienced in perigee (diagram based on orbital tracking data from CSpOC):
[Image]
click diagram to enlarge
The perigee altitude already is very low, near 90-85 km altitude, for days before the reentry and changes minimally untill the actual moment of reentry. The difference between apogee and perigee altitude remains significant up to the last few revolutions, with apogee still at 1000 km only two revolutions before reentry.
This means that, unlike typical objects reentering, Kosmos 2430 only briefly dipped into the upper atmosphere during each orbital revolution, experiencing drag only during brief moments. This is the kind of situation where an object can survive multiple very low perigee passes, and predicting the actual moment of reentry (i.e. during which perigee pass reentry will happen) is difficult. Looking at the CSpOC TIP bulletins for January 5th, this is clear as well as the CSpOC predictions significantly shifted forward in time with the addition of data from each new orbital revolution.
The sightings from New Zealand strongly suggest Kosmos 2430 survived one orbital revolution longer compared to the current (final?) CSpOC TIP estimate.
Note that with such brief but deep dives (well below 100 km) into the upper atmosphere, it is possible that the satellite already developed a plasma tail one or two perigee passes before actual reentry. The copious fragmentation visible in the footage from New Zealand shows that this event, at 7:58 UT was the actual moment of atmospheric reentry and complete disintegration.
posted by SatTrackCam Leiden at 16:28 on 05-Jan-2019
"Fireball seen over New Zealand during cricket match was the reentry of Kosmos 2430 (2007-049A)"
18 Comments -
Fireball swarms from such entries occasionally are misperceived by some witnesses as bright lights on a single large object. I'd be interested in hearing about any such description from witnesses this time.
5/1/19 22:38
I watched this last night. It looked like a big ball with a tail and then broke into 3 pieces. Bigger piece in the middle and 2 smaller 1s on the sides. Was neat to see
6/1/19 01:54
I was among a dozen to twenty amateur astronomers setting up telescopes on a field at the Central Star Party near Hastings, Hawkes Bay, NZ, nearly 10 minutes after sunset (7.58 U.T.). Someone yelled, "Look to the north! We immediately saw a cluster of orange/yellow streamers with bright heads moving slowly south. There were initially seven or so before the numbers dropped down to just the brightest component. Given that the objects started at approx. 15 degrees above the horizon and situated in the north east in still light blue sky ( the darker Earth's shadow and the 'Belt of Venus,' the pinkish band that sits on the top of the Earth's shadow, were below the debris) in the first 15 - 20 seconds the brightest part may have been on a par with Venus at its brightest, i.e. Magnitude -4.4. There were several explosive out bursts that shed more, smaller bits before the object seemed to disappear at around due east. A few seconds later there was another, larger explosion that left an enduring smoke ring which remained visible for up to 20 minutes as a discrete spot about 20 arc minutes across. The magnitude at this time was closer to -7.0! If this had happened 90 minutes later when the sky was dark the object would have cast shadows! The object broke up into another group of 5 or 6 objects as it faded out in the SSW direction. At its greatest elevation the object was no higher than 20 degrees. We were fortunate to have the best seats in the house as we saw the whole event from side on and the object was always at a comfortable viewing height. The only down side was that none of us had cameras or even cell phones handy! In 45 years of active, amateur astronomy I have never seen anything like it, and I have seen a lot!
6/1/19 05:59
Correction to my observation above. The object faded out in the SSE not in the SSW.
6/1/19 06:00
I and family members had seen the blazing light around 8 o'clock and then there was another around 10 o'clock.If it was a satellite why did we see it twice?The second one was going upwards not like the first one which was going down
6/1/19 06:27
Unknown, Where were you, and in what direction were you looking? How high in the sky (how many hand spans at arm's length) was the object? How bright was each object, e.g. as bright as the Full Moon, Quarter Moon, Crescent Moon, Venus, Jupiter, the brightest star? All of these things need to be known before anyone can answer your questions.
6/1/19 06:41
This comment has been removed by the author.
6/1/19 06:42
That's very cool, Ian. I observed it from Ohiwa Beach at approximately 8.00 U.T. (but it could have been more like 7:55). It first appeared as a single object about 20 degrees above the horizon in the north. My first impression was that it might be a flare from out at sea. But it got bigger and more luminous. I thought it peaked at magnitude -6 or so before passing overhead and disappearing to the south. Its shape became sort of elongated and it appeared to fragment into at least two pieces. It might have lasted about 30 seconds or so but the trail remained visible for some time after that. Unfortunately, I didn't hear anything. At the time, I was certain it couldn't have been a meteor. So it's nice to be vindicated!
6/1/19 06:45
Thanks Josh. It is good to see that our magnitude estimates are fairly close. We may have had a better view of the last explosive episode, but you caught it from the start. I get the feeling that the shredded object we saw was what the cricket cameras captured so well. I also suspect that the video cameras at the cricket are fairly long focal ratio affairs as they make the sky look quite dark compared to the short focal ratio, widefield cell phone cameras, some of which struggled to get contrast.
6/1/19 08:30
This comment has been removed by the author.
6/1/19 09:52
We also saw another event nearly 1 hour and 15 minutes later (~22:15 local time) in the same area of the sky. We were camping between Oceans Beach & Kauri Mountain out Whangarei Heads. Directly out to sea from that location. It seems so weird that there would be a second event, albeit less spectacular.
6/1/19 09:54
Scott, there was a lot of meteor activity on Saturday night. I observed through to 2.30am the next morning. The early evening saw plenty of satellites as well, which is normal. There was also a good pass of the ISS (International Space Station)in the north, mid evening. Quite a memorable night all round.
7/1/19 06:26
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8/1/19 08:48
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14/1/19 14:59
I saw that on TV and further read about it on another blog named "Humax Direct Discount Codes" I couldn't actually believe that it was a fireball as it looks like a some kinda firework.
16/1/19 13:26
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17/1/19 03:52