+ View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Small-Body Database Browser
Search:
[
help
]
3376 Armandhammer (1982 UJ8)
Classification:
Main-belt Asteroid
SPK-ID:
2003376
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference:
JPL 40
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.06589167772704346
3.8529e-08
a
2.34858084101126
7.3355e-09
au
q
2.193828909119437
9.2789e-08
au
i
6.347512467715498
3.4869e-06
deg
node
250.0615220199185
3.7511e-05
deg
peri
328.7024540711917
4.8049e-05
deg
M
24.97937180593429
3.0816e-05
deg
t
p
2459109.280915547830
(2020-Sep-16.78091555)
0.00011244
TDB
period
1314.639561711467
3.60
6.1592e-06
1.686e-08
d
yr
n
.2738393172432244
1.283e-09
deg/d
Q
2.503332772903083
7.8189e-09
au
Orbit Determination Parameters
# obs. used (total)
2514
data-arc span
24439 days (66.91 yr)
first obs. used
1953-09-16
last obs. used
2020-08-14
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.40355
source
ORB
producer
Otto Matic
solution date
2020-Nov-13 04:00:50
Additional Information
Earth MOID
= 1.18639 au
Jupiter MOID
= 2.48394 au
T_jup
= 3.548
[ show covariance matrix ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
12.5
n/a
MPO502185
diameter
diameter
7.894
km
0.150
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)
rotation period
rot_per
7.916
h
n/a
LCDB (Rev. 2020-October); Warner et al., 2009
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2009) http://www.asu.cas.cz/~ppravec/neo.htm]
[Stephens, R.D. (2016) Minor Planet Bull. 43, 252-255.]
geometric albedo
albedo
0.212
0.027
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)
SMASSII spectral type
spec_B
Sq
n/a
EAR-A-5-DDR-TAXONOMY-V4.0
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)
3376 Armandhammer (1982 UJ8)
Discovered 1982-Oct-21 by Zhuravleva, L. at Nauchnyj
Reference:
DISCOVERY.DB
Last Updated:
2003-08-29
Alternate Designations
1982 UJ8
= 1952 HP3 = 1975 XF1 = 1978 PJ4 = 1978 SZ1 = 1982 TN
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
2021-Mar-05 17:35 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin