RECON: TNO occultation with 04TT357

Event between 04TT357 and star UC4-544-011943 with event index number of 222800

Geocentric closest approach at 2019/11/16 11:49:15 UTC

J2000 position of star is 05:02:21.0 +18:42:32
Equinox of date position of star is 05:03:24.4 +18:44:01
Stellar brightness R=13.8, use SENSEUP=64
Star is 25 degrees from the moon. Moon is 84% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 33.0 AU from the Sun and 32.1 AU from the Earth.
The TNO is moving 22.0 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 761 seconds.
The 1-sigma cross-track error in the shadow position is 5666 km.
The sky-plane scale is 23253.5 km/arcsec.

The TNO has an absolute magnitude Hv=7.5
Diameter=190.6 km assuming a 5% albedo -- 8.7 sec chord
Diameter=77.8 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 04TT357, (2019/11/16 11:49UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.8 +16:32:52  0.8  6.67  31
Alnath         05:27:33.0 +28:37:21  1.6 11.31  19
104 Tau        05:08:37.5 +18:40:13  5.6  1.21  24
PPM 120566     05:05:59.6 +18:16:48  7.7  0.74  24
PPM 120516     05:02:56.0 +18:48:19  9.9  0.15  25
04TT357        05:03:30.9 +18:44:10 13.8        25
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 1.2 sigma about the mid-time.
The median site spacing is 25.4 km RECON observability=1.0 and success probability=5.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 11:46:56 -32.8 Dark Up 47.6 237.7 Up 11:31:56 - 12:01:56 8756
Tonasket 11:46:56 -32.9 Dark Up 47.8 237.9 Up 11:31:56 - 12:01:56 8733
Okanogan 11:46:56 -33.0 Dark Up 48.0 238.1 Up 11:31:56 - 12:01:56 8699
Brewster 11:46:56 -33.2 Dark Up 48.3 238.1 Up 11:31:56 - 12:01:56 8672
Manson/Chelan 11:46:56 -33.5 Dark Up 48.6 237.9 Up 11:31:56 - 12:01:56 8650
Entiat 11:46:56 -33.6 Dark Up 48.8 238.0 Up 11:31:56 - 12:01:56 8628
Wenatchee 11:46:56 -33.7 Dark Up 49.0 238.2 Up 11:31:56 - 12:01:56 8602
Ellensburg 11:46:56 -33.9 Dark Up 49.3 238.3 Up 11:31:56 - 12:01:56 8560
Yakima 11:46:56 -34.0 Dark Up 49.5 238.7 Up 11:31:56 - 12:01:56 8519
Toppenish/White Swan 11:46:55 -33.9 Dark Up 49.5 239.1 Up 11:31:55 - 12:01:55 8498
Pasco 11:46:51 -33.0 Dark Up 48.8 240.6 Up 11:31:51 - 12:01:51 8491
PNWRO 11:46:49 -32.9 Dark Up 48.8 241.1 Up 11:31:49 - 12:01:49 8467
George/Umatilla 11:46:52 -33.2 Dark Up 49.1 240.7 Up 11:31:52 - 12:01:52 8456
Goldendale 11:46:55 -34.3 Dark Up 50.1 239.2 Up 11:31:55 - 12:01:55 8441
The Dalles 11:46:56 -34.5 Dark Up 50.4 239.0 Up 11:31:56 - 12:01:56 8417
Maupin 11:46:56 -34.5 Dark Up 50.6 239.6 Up 11:31:56 - 12:01:56 8375
Madras/Culver 11:46:55 -34.6 Dark Up 50.9 240.1 Up 11:31:55 - 12:01:55 8320
Sisters 11:46:56 -35.0 Dark Up 51.3 239.9 Up 11:31:56 - 12:01:56 8284
Redmond 11:46:55 -34.7 Dark Up 51.1 240.4 Up 11:31:55 - 12:01:55 8283
Bend 11:46:55 -34.8 Dark Up 51.3 240.5 Up 11:31:55 - 12:01:55 8261
Oregon Observatory 11:46:55 -35.0 Dark Up 51.4 240.5 Up 11:31:55 - 12:01:55 8243
La Pine/Gilchrist 11:46:55 -35.0 Dark Up 51.6 240.7 Up 11:31:55 - 12:01:55 8221
North Lake 11:46:52 -34.6 Dark Up 51.4 241.8 Up 11:31:52 - 12:01:52 8179
Paisley 11:46:51 -34.4 Dark Up 51.4 242.8 Up 11:31:51 - 12:01:51 8123
Chiloquin 11:46:55 -35.4 Dark Up 52.3 241.5 Up 11:31:55 - 12:01:55 8106
Lakeview 11:46:50 -34.4 Dark Up 51.5 243.6 Up 11:31:50 - 12:01:50 8072
Klamath Falls 11:46:54 -35.4 Dark Up 52.4 242.0 Up 11:31:54 - 12:01:54 8071
Tulelake 11:46:53 -35.2 Dark Up 52.4 242.6 Up 11:31:53 - 12:01:53 8044
Cedarville 11:46:48 -34.3 Dark Up 51.7 244.5 Up 11:31:48 - 12:01:48 8004
Niwot 11:46:03 -23.1 Dark Up 41.5 259.4 Up 11:31:03 - 12:01:03 7972
Fall River/Burney 11:46:52 -35.2 Dark Up 52.7 243.8 Up 11:31:52 - 12:01:52 7950
Susanville 11:46:48 -34.7 Dark Up 52.5 245.3 Up 11:31:48 - 12:01:48 7886
Gimple 11:46:49 -34.9 Dark Up 52.8 245.4 Up 11:31:49 - 12:01:49 7856
Greenville 11:46:49 -35.0 Dark Up 52.8 245.3 Up 11:31:49 - 12:01:49 7856
Quincy 11:46:49 -35.0 Dark Up 52.9 245.6 Up 11:31:49 - 12:01:49 7835
Portola 11:46:46 -34.7 Dark Up 52.6 246.2 Up 11:31:46 - 12:01:46 7824
Reno 11:46:44 -34.2 Dark Up 52.3 247.2 Up 11:31:44 - 12:01:44 7798
Carson City 11:46:45 -34.2 Dark Up 52.4 247.6 Up 11:31:45 - 12:01:45 7761
Yerington 11:46:43 -33.7 Dark Up 52.0 248.5 Up 11:31:43 - 12:01:43 7743
Gardnerville 11:46:44 -34.2 Dark Up 52.5 248.0 Up 11:31:44 - 12:01:44 7735
Hawthorne 11:46:39 -33.3 Dark Up 51.8 249.6 Up 11:31:39 - 12:01:39 7696
Tonopah 11:46:35 -32.2 Dark Up 50.9 251.4 Up 11:31:35 - 12:01:35 7654
Lee Vining 11:46:41 -33.7 Dark Up 52.4 249.8 Up 11:31:41 - 12:01:41 7634
Bishop 11:46:38 -33.2 Dark Up 52.0 251.2 Up 11:31:38 - 12:01:38 7574
Beatty 11:46:32 -31.9 Dark Up 50.9 253.2 Up 11:31:32 - 12:01:32 7534
Indian Springs 11:46:28 -31.0 Dark Up 50.2 254.5 Up 11:31:28 - 12:01:28 7506
Lone Pine 11:46:36 -32.9 Dark Up 52.0 252.4 Up 11:31:36 - 12:01:36 7495
Henderson 11:46:25 -30.5 Dark Up 49.8 255.7 Up 11:31:25 - 12:01:25 7454
Patrick 11:46:22 -29.5 Dark Up 49.1 257.3 Up 11:31:22 - 12:01:22 7395
Searchlight/Boulder City 11:46:24 -30.4 Dark Up 49.9 256.4 Up 11:31:24 - 12:01:24 7393
Kingman/Dolan Springs 11:46:21 -29.7 Dark Up 49.3 257.4 Up 11:31:21 - 12:01:21 7370
DCO 11:46:18 -29.0 Dark Up 48.6 258.2 Up 11:31:18 - 12:01:18 7368
Laughlin/Bullhead City 11:46:24 -30.1 Dark Up 49.7 257.0 Up 11:31:24 - 12:01:24 7363
CPSLO 11:46:44 -35.0 Dark Up 54.4 251.7 Up 11:31:44 - 12:01:44 7344
Mohave Valley 11:46:22 -30.1 Dark Up 49.8 257.3 Up 11:31:22 - 12:01:22 7334
Lake Havasu City 11:46:22 -29.9 Dark Up 49.7 258.0 Up 11:31:22 - 12:01:22 7293
Parker 11:46:21 -29.8 Dark Up 49.7 258.4 Up 11:31:21 - 12:01:21 7256
Wildwood 11:46:35 -33.3 Dark Up 53.1 255.1 Up 11:31:35 - 12:01:35 7223
Blythe 11:46:21 -30.0 Dark Up 50.1 258.8 Up 11:31:21 - 12:01:21 7197
Idyllwild 11:46:29 -31.8 Dark Up 51.7 257.1 Up 11:31:29 - 12:01:29 7195
Calipatria 11:46:23 -30.8 Dark Up 50.9 258.7 Up 11:31:23 - 12:01:23 7137
Yuma 11:46:21 -30.0 Dark Up 50.3 259.9 Up 11:31:21 - 12:01:21 7097

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 04TT357, (2019/11/16 11:49UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  6.67  31
Alnath         05:26:17.5 +28:36:24  1.6 11.31  19
104 Tau        05:07:27.7 +18:38:43  5.6  1.21  24
PPM 120566     05:04:50.0 +18:15:14  7.7  0.74  24
PPM 120516     05:01:46.2 +18:46:39  9.9  0.15  25
04TT357        05:02:21.0 +18:42:32 13.8        25
Positions are for J2000

Event circumstances last updated at 2018/01/09 17:48:20 UT

Marc W. Buie, Southwest Research Institute

RECON