Author Topic: Soyuz-2.1b - Lotos-S1#7 (Kosmos 2570) - Plesetsk - Oct 27, 2023 (06:04 UTC) (Read 16290 times)

Satori · « **on:** 10/19/2023 09:39 am »

A launch is schedule for Plesetsk between October 27 and November 15 using a Soyuz-2 type launch vehicle...

https://twitter.com/nicolas_pillet/status/1714933890081542574

B. Hendrickx · « **Reply #1 on:** 10/19/2023 11:43 am »

Impact zones also announced for the Komi Republic:

https://komiinform.ru/news/256965

According to this announcement, launch is set for October 27 with back-up opportunities on October 28, November 2, 3, 8, 9, 14, 15.

These impact zones are for launches into 67° inclination orbits. The most likely payload is another Lotos-S ELINT satellite (14F145 N°808). Another possibility is the second Neitron (14F01-2), if that is still planned to be launched.

Alter Sachse · « **Reply #2 on:** 10/20/2023 01:15 pm »

For Neitron, the impact zone was in the Yamalo-Nenetsk region.
For Lotos it was the Komi republic.

So a Lotos-satellite is a better option.

B. Hendrickx · « **Reply #3 on:** 10/20/2023 08:44 pm »

Quote from: Alter Sachse on 10/20/2023 01:15 pm

For Neitron, the impact zone was in the Yamalo-Nenetsk region.
For Lotos it was the Komi republic.

So a Lotos-satellite is a better option.

Yamalo-Nenetsk was also announced for the upcoming launch. See the first post in this thread: the impact zones given in the tweet are in the Yamalo-Nenetsk region, although it is not mentioned by name. Actually, it's not possible to distinguish between Neitron and Lotos based on the impact zones. For launches into 67° orbits, the Komi Republic is the impact zone for the first stage and Yamalo-Nenetsk for the second stage.

What does point to a Lotos launch are the three back-to-back launch windows separated by several days. Something similar was seen for the latest Lotos launch (Kosmos-2565) in late November last year (two back-to-back launch windows separated by several days). These windows are likely tied to the orbits of the operational Lotos satellites. There are now three of them (Kosmos-2549, 2554 and 2565), which orbit the Earth in three separate planes spaced about 120° apart.

Galactic Penguin SST · « **Reply #4 on:** 10/23/2023 08:36 am »

Probable NOTAM for closing of air routes for this - the general direction of the closure locations and the dates match with the reports above. Daily window is 04:00 - 08:00 UTC.

Q2846/23 NOTAMN Q) ULLL/QARLC/IV/NBO/E/055/540/6509N05352E208 A) ULLL B) 2310270400 C) 2311030800 D) OCT 27 28 NOV 02 03 0400-0800 E) ATS RTE SEGMENTS CLSD: M131 NAKIR-ROGIS FL175-FL540, N746 ATGOR-SUBEP FL265-FL540, P35 LESHUKONSKOYE VORDME(LKN)-ABOKI FL055-FL540, T754 BILMI-GIGES FL055-FL540, T761 AMEDO-ROGIS FL275-FL540, T761 SUBEP-BILMI FL275-FL540, T765 LIDLA-NIKDI FL055-FL540, T793 BILMI-ATGOR FL055-FL540, T821 BILMI-NAREK FL245-FL540, W152 BILMI-PERAG FL055-FL325. F) FL055 G) FL540

Q2874/23 NOTAMN Q) ULLL/QRTCA/IV/BO/W/000/050/6511N05008E110 A) ULLL B) 2310270400 C) 2311030800 D) OCT 27 28 NOV 02 03 0400-0800 E) AIRSPACE CLSD AS FLW: 1. AREA: 645700N0474000E-643300N0480000E-641600N0462600E- 643700N0461000E-645700N0474000E 2. AREA: 660100N0540500E-653700N0540500E-652300N0525000E- 654900N0522700E-660100N0540500E. F) SFC G) 1500M AMSL

B. Hendrickx · « **Reply #5 on:** 10/26/2023 11:09 pm »

If this is indeed another Lotos-S satellite, one thing to look out for is whether it carries a subsatellite like its predecessor Kosmos-2565 (which released Kosmos-2566 days several days after launch). The first clue that Kosmos-2565 carried a passenger came in the Ministry of Defense's launch announcement, which talked about satellites (plural) having been placed into orbit by the Soyuz-2 rocket. The subsatellite was presumably installed on an adapter that can be seen on top of a Lotos-S model displayed at a military exhibition last summer.

zubenelgenubi · « **Reply #6 on:** 10/27/2023 05:16 am »

Any launch news?

Steven Pietrobon · « **Reply #7 on:** 10/27/2023 06:05 am »

Quote from: zubenelgenubi on 10/27/2023 05:16 am

Any launch news?

I couldn't find any.

Galactic Penguin SST · « **Reply #8 on:** 10/27/2023 06:43 am »

Liftoff confirmed by their MoD. No launch time given so far but confirms that a Soyuz-2.1b was used.

B. Hendrickx · « **Reply #9 on:** 10/27/2023 07:10 am »

The launch announcement mentions satellites (plural) launched by the Soyuz rocket. So it looks like another Lotos with a subsatellite. That should be released from Lotos in the coming days.

Steven Pietrobon · « **Reply #10 on:** 10/27/2023 07:38 am »

Quote from: Galactic Penguin SST on 10/27/2023 06:43 am

Liftoff confirmed by their MoD. No launch time given so far but confirms that a Soyuz-2.1b was used.

Translation.

"The Aerospace Forces launched the Soyuz-2.1b launch vehicle from the Plesetsk cosmodrome

On October 27, 2023, a combat crew of the Space Forces of the Aerospace Forces launched a Soyuz-2.1b medium-class launch vehicle with spacecraft from the Plesetsk cosmodrome (Arkhangelsk Region) in the interests of the Russian Ministry of Defense."

Alter Sachse · « **Reply #11 on:** 10/27/2023 08:19 am »

DeepL does not translate it clearly:
spacecraft/spacecrafts.
$:-\$

input~2 · « **Reply #12 on:** 10/27/2023 09:20 am »

2023-165A/58148 in 239 x 900 km x 67.14°
2023-165B/58149 in 239 x 879 km x 67.14°

B. Hendrickx · « **Reply #13 on:** 10/27/2023 09:24 am »

Quote from: Alter Sachse on 10/27/2023 08:19 am

DeepL does not translate it clearly:
spacecraft/spacecrafts.
$:-\$

It's plural in Russian. Same as in the announcement of the launch of Kosmos-2565 last year. We will almost certainly see the release of a subsatellite after Lotos circularizes its orbit.

Satori · « **Reply #14 on:** 10/27/2023 09:48 am »

The Russian Ministry of Defense organized an excursion for students of three Suvorov military schools to the northernmost cosmodrome...

https://function.mil.ru/news_page/country/more.htm?id=12483081@egNews

So, I suppose that this is the Soyuz-2.1b that was launched today.

Galactic Penguin SST · « **Reply #15 on:** 10/27/2023 10:03 am »

Quote from: Satori on 10/27/2023 09:48 am

The Russian Ministry of Defense organized an excursion for students of three Suvorov military schools to the northernmost cosmodrome...

https://function.mil.ru/news_page/country/more.htm?id=12483081@egNews

So, I suppose that this is the Soyuz-2.1b that was launched today.

The square base, red-white lightning towers would show this to be launching from Site 43/3.

Alter Sachse · « **Reply #16 on:** 10/27/2023 03:10 pm »

According to
http://orbitalfocus.uk/Diaries/Launches/Launches.php?year=2023
launch took place ~06:06 UTC.

Satori · « **Reply #17 on:** 10/27/2023 03:42 pm »

"My estimate of the launch time, based on Space Force tracking, is 0605 UTC Oct 27."

https://twitter.com/planet4589/status/1717925911742292333

Conexion Espacial · « **Reply #18 on:** 10/27/2023 03:55 pm »

Launch Video
https://t.me/mod_russia/31872

owais.usmani · « **Reply #19 on:** 10/27/2023 03:55 pm »

https://twitter.com/Blackrussiantv/status/1717930811020771646