Marco Langbroek
@marcolangbroek.bsky.social
Lecturer in optical Space Situational Awareness at Delft Technical University, faculty of Aerospace. Spy sats, missiles, meteorites, asteroids. Asteroid (183294). Lapsed Archaeologist (PhD). Rowing. CFS. Opinions my own.
blog: http://sattrackcam.blogspot.c
blog: http://sattrackcam.blogspot.c
[CORRECTED]
Volcanic activity at Erta Ale, Ethiopia, in this Copernicus Sentinel 2C satellite image from 23 November.
Combination of visual channels + SWIR
Volcanic activity at Erta Ale, Ethiopia, in this Copernicus Sentinel 2C satellite image from 23 November.
Combination of visual channels + SWIR
November 28, 2025 at 4:17 PM
[CORRECTED]
Volcanic activity at Erta Ale, Ethiopia, in this Copernicus Sentinel 2C satellite image from 23 November.
Combination of visual channels + SWIR
Volcanic activity at Erta Ale, Ethiopia, in this Copernicus Sentinel 2C satellite image from 23 November.
Combination of visual channels + SWIR
Anyone have any idea what this Navigational Warning for Nov 21-24 near Hawaii is for?
November 16, 2025 at 12:55 PM
Anyone have any idea what this Navigational Warning for Nov 21-24 near Hawaii is for?
Nature did that with asteroids as percussoirs. I have some moonflakes at home as a result.
November 13, 2025 at 7:49 PM
Nature did that with asteroids as percussoirs. I have some moonflakes at home as a result.
LRPT image from the 15:36 CET pass of the Meteor M2-4 satellite.
November 12, 2025 at 3:31 PM
LRPT image from the 15:36 CET pass of the Meteor M2-4 satellite.
Navigational Warnings have appeared for a Rocketlab HASTE #hypersonic #missile test launch from Wallops, Virginia, Nov 16-21.
November 12, 2025 at 10:19 AM
Navigational Warnings have appeared for a Rocketlab HASTE #hypersonic #missile test launch from Wallops, Virginia, Nov 16-21.
#BRIK-II, de in juni 2021 gelanceerde allereerste #defensie-satelliet van Nederland, komt ergens in de komende 24 uur omlaag en verbrandt dan in de atmosfeer, na ruim 4 jaar trouwe dienst.
Mijn huidige #reentry voorspelling:
12 Nov 2025 11:42 +- 6u UTC.
Mijn huidige #reentry voorspelling:
12 Nov 2025 11:42 +- 6u UTC.
November 11, 2025 at 5:03 PM
#BRIK-II, de in juni 2021 gelanceerde allereerste #defensie-satelliet van Nederland, komt ergens in de komende 24 uur omlaag en verbrandt dan in de atmosfeer, na ruim 4 jaar trouwe dienst.
Mijn huidige #reentry voorspelling:
12 Nov 2025 11:42 +- 6u UTC.
Mijn huidige #reentry voorspelling:
12 Nov 2025 11:42 +- 6u UTC.
2/x
Location at time of observation.
This was a difficult object to model in our reentry model: very eccentric orbit (brief dips below 1540 km), and indications of changing attitude =- changing drag area
Location at time of observation.
This was a difficult object to model in our reentry model: very eccentric orbit (brief dips below 1540 km), and indications of changing attitude =- changing drag area
November 8, 2025 at 1:29 PM
2/x
Location at time of observation.
This was a difficult object to model in our reentry model: very eccentric orbit (brief dips below 1540 km), and indications of changing attitude =- changing drag area
Location at time of observation.
This was a difficult object to model in our reentry model: very eccentric orbit (brief dips below 1540 km), and indications of changing attitude =- changing drag area
November 5, 2025 at 4:56 PM
November 5, 2025 at 3:11 PM
The #UNHA3 upper stage from the #NorthKorean rocket that launched KMS 3-2 in 2012 will have an uncontrolled #reentry today. It is small (2.2 x 1.4m).
Our current Tudat model reentry forecast is 19:21 UTC +- 3.1 h.
Map shows trajectory over window.
Our current Tudat model reentry forecast is 19:21 UTC +- 3.1 h.
Map shows trajectory over window.
November 5, 2025 at 10:24 AM
The #UNHA3 upper stage from the #NorthKorean rocket that launched KMS 3-2 in 2012 will have an uncontrolled #reentry today. It is small (2.2 x 1.4m).
Our current Tudat model reentry forecast is 19:21 UTC +- 3.1 h.
Map shows trajectory over window.
Our current Tudat model reentry forecast is 19:21 UTC +- 3.1 h.
Map shows trajectory over window.
LRPT image from the 15:08 CET pass of the Meteor M2-4 satellite. Nice view of the Alps.
November 4, 2025 at 2:33 PM
LRPT image from the 15:08 CET pass of the Meteor M2-4 satellite. Nice view of the Alps.
4/x
I got a question what all these areas are for. Basically this (see map). The #Minuteman is a 3-stage #missile and can carry multiple reentry vehicles (MIRV).
I got a question what all these areas are for. Basically this (see map). The #Minuteman is a 3-stage #missile and can carry multiple reentry vehicles (MIRV).
November 4, 2025 at 1:16 PM
4/x
I got a question what all these areas are for. Basically this (see map). The #Minuteman is a 3-stage #missile and can carry multiple reentry vehicles (MIRV).
I got a question what all these areas are for. Basically this (see map). The #Minuteman is a 3-stage #missile and can carry multiple reentry vehicles (MIRV).
After two weeks, a lone CSpOC #TIP has just appeared for the Jielong-3 RB 2024-173L, the suspect of the #Newman space #debris find.
18 Oct 2025 4:38 ± 1m UTC near 18 S 121 E.
This fits well with the Newman object being a part of this rocket.
@drspacejunk.bsky.social @planet4589.bsky.social
18 Oct 2025 4:38 ± 1m UTC near 18 S 121 E.
This fits well with the Newman object being a part of this rocket.
@drspacejunk.bsky.social @planet4589.bsky.social
October 31, 2025 at 12:32 PM
After two weeks, a lone CSpOC #TIP has just appeared for the Jielong-3 RB 2024-173L, the suspect of the #Newman space #debris find.
18 Oct 2025 4:38 ± 1m UTC near 18 S 121 E.
This fits well with the Newman object being a part of this rocket.
@drspacejunk.bsky.social @planet4589.bsky.social
18 Oct 2025 4:38 ± 1m UTC near 18 S 121 E.
This fits well with the Newman object being a part of this rocket.
@drspacejunk.bsky.social @planet4589.bsky.social
1/x
Navigational Warnings have appeared that point to the (unarmed) test #launch of a US #Minuteman-III #ICBM from Vandenberg targetting the Ronald Reagan Test Site on Kwajalein, Nov 5-6
Navigational Warnings have appeared that point to the (unarmed) test #launch of a US #Minuteman-III #ICBM from Vandenberg targetting the Ronald Reagan Test Site on Kwajalein, Nov 5-6
October 31, 2025 at 12:06 PM
1/x
Navigational Warnings have appeared that point to the (unarmed) test #launch of a US #Minuteman-III #ICBM from Vandenberg targetting the Ronald Reagan Test Site on Kwajalein, Nov 5-6
Navigational Warnings have appeared that point to the (unarmed) test #launch of a US #Minuteman-III #ICBM from Vandenberg targetting the Ronald Reagan Test Site on Kwajalein, Nov 5-6
Alas a lot of RF interference during the pass so parts of image lost, but:
Storm Benjamin over the Netherlands in a Meteor M2-4 LRPT image from 15:27 CEST today.
Storm Benjamin over the Netherlands in a Meteor M2-4 LRPT image from 15:27 CEST today.
October 23, 2025 at 1:47 PM
Alas a lot of RF interference during the pass so parts of image lost, but:
Storm Benjamin over the Netherlands in a Meteor M2-4 LRPT image from 15:27 CEST today.
Storm Benjamin over the Netherlands in a Meteor M2-4 LRPT image from 15:27 CEST today.
LRPT image from the Meteor M2-4 satelloite received during the 15:49 CEST pass
October 22, 2025 at 2:12 PM
LRPT image from the Meteor M2-4 satelloite received during the 15:49 CEST pass
A #reentry was observed from the Canary Islands this morning (16 Oct 2025) around 1:57 UTC, including the detection of shockwaves by seismic stations (!).
In cooperation with SPMN and Josep M. Trigo-Rodríguez I was able to identify it as the reentry of the Chinese XJY-7 satellite (2020-102C).
In cooperation with SPMN and Josep M. Trigo-Rodríguez I was able to identify it as the reentry of the Chinese XJY-7 satellite (2020-102C).
October 16, 2025 at 12:29 PM
A #reentry was observed from the Canary Islands this morning (16 Oct 2025) around 1:57 UTC, including the detection of shockwaves by seismic stations (!).
In cooperation with SPMN and Josep M. Trigo-Rodríguez I was able to identify it as the reentry of the Chinese XJY-7 satellite (2020-102C).
In cooperation with SPMN and Josep M. Trigo-Rodríguez I was able to identify it as the reentry of the Chinese XJY-7 satellite (2020-102C).
Storm depression north of Scotland causing strong wind in the Netherlands and surroundings. LRPT image received from the Meteor M2-4 satelloite during the 15:37 CEST pass.
October 4, 2025 at 1:59 PM
Storm depression north of Scotland causing strong wind in the Netherlands and surroundings. LRPT image received from the Meteor M2-4 satelloite during the 15:37 CEST pass.
