RECON set for first 2017-18 occultation tonight!

The RECON Project will be conducting the first TNO occultation campaign for the 2017-18 school year this evening.  Centaur 01SQ73 will be occulting a magnitude 11.2 star on November 19 at 09:02 UT.  For RECON teams, most will start recording 08:49 UT (that’s 12:49AM PST / 1:49AM MST this Sunday morning, November 19).  You can check out the Event Detail Page for 01SQ73 for local recording windows.

Weather across the network is not perfect but much better than many of last year’s events!  Team members can check out local sky forecasts on our Sky Conditions Page. Because the target star is reasonably bright, team members can also increase sense-up to get a better signal through partial clouds if needed.

Good luck to all of our RECON teams tonight.

Clear Sky Clock forecast map for 2017/11/19 at 9UT

 

Daytime Occultation of Regulus by the Moon

Good luck to all of our RECON Teams on two occultation opportunities this month:

Also, on Saturday morning, November 11 around 17UT, the waning crescent moon will occult the star Regulus.  This event will occur during daylight hours for the western US, but through a telescope, with binoculars, or even just naked eye, you should be able to see both the moon and Regulus before the occultation occurs. The prediction map below shows the path of the moon’s shadow.  This map, along with predicted occultation time by major city, is also available at http://www.lunar-occultations.com/iota/bstar/1111zc1487.htm.

Shadow prediction for lunar occultation of Regulus

 

Optional IOTA Campaigns

There are two main belt asteroid occultation opportunities for teams located from:

  • Southern Oregon to Portola CA on Friday night, July 21 around 11:20PM PDT/MST
  • Owens Valley down to Lake Havasu City AZ on Saturday night, July 22, around 11:04PM PDT/MST

Both campaigns are optional, but they provide great practice opportunities and will contribute to IOTA efforts. Participating teams are encouraged to sign up using OccultWatcher (or to contact John Keller so that he can sign your team up on OW). Details are provided below.

(1428) Mombasa:
RECON Teams: North Lake OR to Portola CA
Date: 22 Jul 2017 at 06:21 UT
Recording Window: 06:20-06:23 UT
Sense-up: 32x
IOTA Details: http://www.asteroidoccultation.com/2017_07/0722_1428_58040.htm

http://www.asteroidoccultation.com/2017_07/0722_1428_58040_Map.gif

(76) Freia:
RECON Teams: Bishop CA to Lake Havasu City AZ
Date: 23 Jul 2017 at 06:04 UT
Recording Window: 06:03-06:06 UT
Sense-up: 16x
IOTA Details: http://asteroidoccultation.com/2017_07/0723_76_58054.htm

http://asteroidoccultation.com/2017_07/0723_76_58054_Map.gif

 

RECON Campaign involving Chiron!

Happy Fourth of July, RECON!!!

We wanted to provide a heads up about an exciting opportunity to measure Chiron, a 100-km Centaur with suspected ring structure(s)!  We will have an event page up shortly, but the map below provided by LESIA at L’Observatoire de Paris shows that the probabilities of successfully recording this object are high and that the extended RECON network down to Arizona is well positioned to map any extended structures associated with the main body!

Prediction map for occultation by Centaur Chiron on 2017 August 15 UT

The event will occur early on the morning of Tuesday, August 15 around 11:51 UT (4:51AM PDT/MST). Twilight will be approaching during the occultation, but there should be plenty of time to get onto the field prior to this. Mark your calendars now and stay tuned for details!