+ View the NASA Portal
+ Center for Near-Earth Object Studies
IMPORTANT:
The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.
Please visit
this page
for more details.
Don't show this message again
JPL Small-Body Database Browser
Search:
[
help
]
249623 (1999 TP46)
Classification:
Main-belt Asteroid
SPK-ID:
2249623
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference:
JPL 9
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.06017762800341863
5.7294e-08
a
3.136416812146019
5.034e-08
au
q
2.947674687961028
1.9902e-07
au
i
15.94403585783204
8.895e-06
deg
node
19.62115854842527
2.2468e-05
deg
peri
268.5576207623775
9.6053e-05
deg
M
263.5454980807685
9.9117e-05
deg
t
p
2459144.087033289849
(2020-Oct-21.58703329)
0.00056613
TDB
period
2028.846016417278
5.55
4.8845e-05
1.337e-07
d
yr
n
.1774407703132251
4.272e-09
deg/d
Q
3.325158936331011
5.337e-08
au
Orbit Determination Parameters
# obs. used (total)
172
data-arc span
7149 days (19.57 yr)
first obs. used
1999-10-04
last obs. used
2019-05-01
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.57168
source
ORB
producer
Otto Matic
solution date
2019-Jul-13 13:33:23
Additional Information
Earth MOID
= 1.98936 au
Jupiter MOID
= 1.82211 au
T_jup
= 3.149
[ show covariance matrix ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.4
n/a
MPO396803
diameter
diameter
3.940
km
1.819
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.086
0.045
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
249623 (1999 TP46)
Discovered 1999-Oct-04 by Spacewatch at Kitt Peak
Reference:
20100923/Numbers.arc
Last Updated:
2010-09-27
[ show close-approach data ]
Alternate Designations
1999 TP46
= 2008 EB162
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-09 08:33 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin