TacRL-2 launch on June 13-14?

From: Marco Langbroek via Seesat-l <seesat-l_at_satobs.org>
Date: Wed, 9 Jun 2021 17:39:19 +0200
A Navigational Warning has appeared that looks to be for an airborne launch on
13-14 June.

It most likely is a Pegasus-XL launch with TacRL-2, a Responsive Launch demo by
the Space Force (the alternative is Virgin Orbit's LauncherOne launch of amongst
others Brik-II, but that is said to be scheduled for the last week of June).

The line-up of the hazard areas indicates a ~98 degree polar (and likely
sun-synchronous) orbit.

 090844Z JUN 21
 NAVAREA XII 257/21(18,83).
 EASTERN NORTH PACIFIC.
 CALIFORNIA.
 1. HAZARDOUS OPERATIONS 0739Z TO 0855Z DAILY
    13 AND 14 JUN IN AREAS BOUND BY:
    A. 35-19N 123-44W, 35-13N 122-58W,
       31-11N 124-05W, 31-16N 124-30W.
    B. 29-34N 125-03W, 29-28N 124-29W,
       27-32N 124-53W, 27-38N 125-26W.
    C. 20-19N 127-23W, 20-02N 125-41W,
       15-26N 126-30W, 15-43N 128-11W.
    D. 01-20N 131-46W, 00-35N 127-20W,
       01-52S 127-44W, 01-06S 132-11W.
 2. CANCEL THIS MSG 140955Z JUN 21.


The elset below is for an assumed sun-synchronous orbital altitude of ~660 km
and launch at the start of the launch window:

TacRL-2                  for launch at launch 13 Jun 2021 07:40:00 UT
1 70000U 21999A   21164.31944444  .00000000  00000-0  00000-0 0    07
2 70000 098.0000 070.0141 0007104 159.5631 326.6111 14.70334902    04

Lot's of assumptions in this elset (including precise orbital inclination and
orbital altitude), so be prepared for large deviations.

About TacRL-2:
https://spaceflightnow.com/2021/03/17/northrop-grummans-pegasus-rocket-selected-for-responsive-launch-demo/


- Marco


-----
Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
e-mail: sattrackcam_at_langbroek.org

launchtower:    http://launchtower.langbroek.org
Station (b)log: http://sattrackcam.blogspot.com
Twitter:        _at_Marco_Langbroek
-----
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Received on Wed Jun 09 2021 - 10:40:23 UTC

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