+ 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
]
85613 (1998 HC33)
Classification:
Main-belt Asteroid
SPK-ID:
2085613
[
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 16
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1435873673966082
3.8414e-08
a
3.182321030290161
2.6891e-08
au
q
2.725379931339936
1.2573e-07
au
i
14.40393306095307
8.595e-06
deg
node
19.27852070334594
1.7543e-05
deg
peri
98.29724132291764
3.7696e-05
deg
M
321.6981809965923
3.1192e-05
deg
t
p
2458821.113105978246
(2019-Dec-03.61310598)
0.00018036
TDB
period
2073.549513277753
5.68
2.6283e-05
7.196e-08
d
yr
n
.1736153381893118
2.2006e-09
deg/d
Q
3.639262129240387
3.0752e-08
au
Orbit Determination Parameters
# obs. used (total)
617
data-arc span
8837 days (24.19 yr)
first obs. used
1995-09-18
last obs. used
2019-11-28
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.608
source
ORB
producer
Otto Matic
solution date
2019-Dec-04 08:17:57
Additional Information
Earth MOID
= 1.78798 au
Jupiter MOID
= 1.60743 au
T_jup
= 3.134
[ 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
14.4
n/a
MPO337904
diameter
diameter
7.421
km
0.306
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.073
0.016
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
85613 (1998 HC33)
Discovered 1998-Apr-20 by LINEAR at Socorro
Reference:
20040830/Numbers.arc
Last Updated:
2004-09-06
[ show close-approach data ]
Alternate Designations
1998 HC33
= 2001 SG281
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-10 19:05 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin