RECON: TNO occultation with 14XP40

Event between 14XP40 and star GA0820:04065653 with event index number of 253168

Geocentric closest approach at 2019/04/19 04:48:35 UTC

J2000 position of star is 11:04:56.0 -06:57:19
Equinox of date position of star is 11:05:52.0 -07:03:18
Stellar brightness G=16.3, use SENSEUP=128
Star is 39 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=21.8

[RECON map]
TNO is 28.7 AU from the Sun and 27.9 AU from the Earth.
The TNO is moving 16.7 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 211 seconds.
The 1-sigma cross-track error in the shadow position is 3748 km.
The sky-plane scale is 20260.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=232.3 km assuming a 5% albedo -- 13.9 sec chord
Diameter=94.8 km assuming a 30% albedo -- 5.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14XP40, (2019/04/19 04:49UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:23.9 +11:52:20  1.3 23.58  56
4Gam Crv       12:16:48.1 -17:38:56  2.6 20.27  24
PPM 194312     11:17:56.9 -07:14:25  6.1  2.99  36
PPM 194114     11:07:04.4 -07:06:46  7.9  0.29  39
PPM 194093     11:05:51.7 -07:19:02  9.6  0.26  39
14XP40         11:05:54.6 -07:03:35 16.3        39
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 4.3 sigma about the mid-time.
The median site spacing is 14.7 km RECON observability=1.0 and success probability=6.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Niwot 04:50:47 -30.7 Dark Up 42.3 191.2 Up 04:35:47 - 05:05:47 -3140
Penticton 04:52:03 -17.1 AT Up 33.3 173.1 Up 04:37:03 - 05:07:03 -3277
Oroville 04:52:03 -17.5 AT Up 33.9 173.2 Up 04:37:03 - 05:07:03 -3305
Tonasket 04:52:01 -17.7 AT Up 34.1 173.2 Up 04:37:01 - 05:07:01 -3318
Okanogan 04:52:02 -17.8 AT Up 34.4 173.0 Up 04:37:02 - 05:07:02 -3343
Brewster 04:52:01 -17.9 AT Up 34.7 172.7 Up 04:37:01 - 05:07:01 -3367
Manson/Chelan 04:52:03 -17.9 AT Up 34.9 172.3 Up 04:37:03 - 05:07:03 -3395
Entiat 04:52:02 -18.0 AT Up 35.1 172.2 Up 04:37:02 - 05:07:02 -3411
Wenatchee 04:52:03 -18.1 Dark Up 35.3 172.0 Up 04:37:03 - 05:07:03 -3431
Pasco 04:51:57 -19.5 Dark Up 36.6 173.4 Up 04:36:57 - 05:06:57 -3444
PNWRO 04:51:54 -19.7 Dark Up 36.8 173.6 Up 04:36:54 - 05:06:54 -3448
Ellensburg 04:52:01 -18.2 Dark Up 35.7 171.7 Up 04:37:01 - 05:07:01 -3465
George/Umatilla 04:51:57 -19.6 Dark Up 36.9 173.1 Up 04:36:57 - 05:06:57 -3474
Yakima 04:52:01 -18.5 Dark Up 36.1 171.7 Up 04:37:01 - 05:07:01 -3489
Toppenish/White Swan 04:52:00 -18.7 Dark Up 36.3 171.8 Up 04:37:00 - 05:07:00 -3495
Goldendale 04:52:03 -18.9 Dark Up 36.9 171.3 Up 04:37:03 - 05:07:03 -3547
The Dalles 04:52:03 -18.8 Dark Up 37.0 170.8 Up 04:37:03 - 05:07:03 -3578
Maupin 04:52:02 -19.1 Dark Up 37.5 170.9 Up 04:37:02 - 05:07:02 -3598
Madras/Culver 04:52:00 -19.5 Dark Up 38.0 170.7 Up 04:37:00 - 05:07:00 -3634
Redmond 04:52:01 -19.7 Dark Up 38.3 170.6 Up 04:37:01 - 05:07:01 -3659
Sisters 04:52:02 -19.4 Dark Up 38.3 170.1 Up 04:37:02 - 05:07:02 -3676
Bend 04:52:00 -19.7 Dark Up 38.5 170.4 Up 04:37:00 - 05:07:00 -3679
Oregon Observatory 04:52:01 -19.7 Dark Up 38.7 170.2 Up 04:37:01 - 05:07:01 -3696
North Lake 04:51:56 -20.4 Dark Up 39.4 170.8 Up 04:36:56 - 05:06:56 -3711
La Pine/Gilchrist 04:52:01 -19.8 Dark Up 38.9 170.1 Up 04:37:01 - 05:07:01 -3712
Paisley 04:51:54 -21.0 Dark Up 40.0 171.2 Up 04:36:54 - 05:06:54 -3729
Lakeview 04:51:54 -21.4 Dark Up 40.5 171.4 Up 04:36:54 - 05:06:54 -3752
Cedarville 04:51:51 -21.9 Dark Up 41.2 171.5 Up 04:36:51 - 05:06:51 -3786
Chiloquin 04:51:59 -20.3 Dark Up 39.9 169.5 Up 04:36:59 - 05:06:59 -3801
Klamath Falls 04:51:59 -20.6 Dark Up 40.3 169.6 Up 04:36:59 - 05:06:59 -3819
Tulelake 04:51:56 -20.9 Dark Up 40.6 169.9 Up 04:36:56 - 05:06:56 -3822
DCO 04:51:06 -30.2 Dark Up 47.9 180.6 Up 04:36:06 - 05:06:06 -3850
Tonopah 04:51:31 -25.9 Dark Up 44.9 175.0 Up 04:36:31 - 05:06:31 -3865
Patrick 04:51:11 -29.6 Dark Up 47.6 179.6 Up 04:36:11 - 05:06:11 -3867
Fall River/Burney 04:51:54 -21.5 Dark Up 41.5 169.8 Up 04:36:54 - 05:06:54 -3878
Susanville 04:51:50 -22.4 Dark Up 42.2 170.7 Up 04:36:50 - 05:06:50 -3883
Henderson 04:51:17 -28.5 Dark Up 47.0 178.0 Up 04:36:17 - 05:06:17 -3884
Indian Springs 04:51:21 -27.7 Dark Up 46.4 177.0 Up 04:36:21 - 05:06:21 -3884
Kingman/Dolan Springs 04:51:11 -29.6 Dark Up 47.9 179.3 Up 04:36:11 - 05:06:11 -3892
Reno 04:51:46 -23.4 Dark Up 43.2 171.7 Up 04:36:46 - 05:06:46 -3899
Yerington 04:51:41 -24.1 Dark Up 43.8 172.5 Up 04:36:41 - 05:06:41 -3902
Hawthorne 04:51:37 -24.7 Dark Up 44.3 173.1 Up 04:36:37 - 05:06:37 -3906
Gimple 04:51:51 -22.4 Dark Up 42.5 170.4 Up 04:36:51 - 05:06:51 -3912
Portola 04:51:48 -22.8 Dark Up 42.8 170.9 Up 04:36:48 - 05:06:48 -3914
Greenville 04:51:51 -22.3 Dark Up 42.4 170.3 Up 04:36:51 - 05:06:51 -3916
Beatty 04:51:26 -26.9 Dark Up 46.0 175.5 Up 04:36:26 - 05:06:26 -3919
Searchlight/Boulder City 04:51:15 -28.9 Dark Up 47.6 178.0 Up 04:36:15 - 05:06:15 -3919
Laughlin/Bullhead City 04:51:12 -29.3 Dark Up 47.9 178.5 Up 04:36:12 - 05:06:12 -3921
Carson City 04:51:45 -23.6 Dark Up 43.5 171.7 Up 04:36:45 - 05:06:45 -3921
Quincy 04:51:50 -22.5 Dark Up 42.6 170.2 Up 04:36:50 - 05:06:50 -3929
Gardnerville 04:51:44 -23.8 Dark Up 43.8 171.7 Up 04:36:44 - 05:06:44 -3936
Mohave Valley 04:51:10 -29.5 Dark Up 48.1 178.5 Up 04:36:10 - 05:06:10 -3939
Lake Havasu City 04:51:09 -29.9 Dark Up 48.5 178.9 Up 04:36:09 - 05:06:09 -3954
Lee Vining 04:51:37 -24.8 Dark Up 44.8 172.4 Up 04:36:37 - 05:06:37 -3970
Bishop 04:51:34 -25.6 Dark Up 45.5 173.3 Up 04:36:34 - 05:06:34 -3973
Parker 04:51:09 -30.2 Dark Up 48.9 178.9 Up 04:36:09 - 05:06:09 -3976
Lone Pine 04:51:32 -26.3 Dark Up 46.2 173.7 Up 04:36:32 - 05:06:32 -4007
Blythe 04:51:08 -30.3 Dark Up 49.4 178.4 Up 04:36:08 - 05:06:08 -4028
Yuma 04:51:06 -30.9 Dark Up 50.3 178.3 Up 04:36:06 - 05:06:06 -4095
Calipatria 04:51:12 -30.0 Dark Up 49.9 177.0 Up 04:36:12 - 05:06:12 -4113
Idyllwild 04:51:19 -28.9 Dark Up 49.2 175.3 Up 04:36:19 - 05:06:19 -4135
Wildwood 04:51:27 -27.5 Dark Up 48.7 172.5 Up 04:36:27 - 05:06:27 -4212
CPSLO 04:51:40 -25.4 Dark Up 47.2 169.8 Up 04:36:40 - 05:06:40 -4236

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 14XP40, (2019/04/19 04:49UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3 23.58  56
4Gam Crv       12:15:48.2 -17:32:31  2.6 20.27  24
PPM 194312     11:16:58.2 -07:08:05  6.1  2.99  36
PPM 194114     11:06:05.8 -07:00:30  7.9  0.29  39
PPM 194093     11:04:53.1 -07:12:46  9.6  0.26  39
14XP40         11:04:56.0 -06:57:19 16.3        39
Positions are for J2000

Event circumstances last updated at 2018/06/11 17:23:38 UT

Marc W. Buie, Southwest Research Institute

RECON