+ View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Small-Body Database Browser
Search:
[
help
]
1227 Geranium (1931 TD)
Classification:
Outer Main-belt Asteroid
SPK-ID:
2001227
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference:
JPL 44
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1923021053417678
3.9286e-08
a
3.219331452393037
1.6046e-08
au
q
2.600247236304885
1.2782e-07
au
i
16.4900101514814
4.0321e-06
deg
node
.6641476606858213
1.3984e-05
deg
peri
302.9962707967267
1.6612e-05
deg
M
194.1231861933331
1.094e-05
deg
t
p
2459972.642991990499
(2023-Jan-28.14299199)
6.577e-05
TDB
period
2109.827582801772
5.78
1.5774e-05
4.319e-08
d
yr
n
.170630056661755
1.2757e-09
deg/d
Q
3.838415668481189
1.9131e-08
au
Orbit Determination Parameters
# obs. used (total)
2847
data-arc span
32550 days (89.12 yr)
first obs. used
1931-10-05
last obs. used
2020-11-16
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.40145
source
ORB
producer
Otto Matic
solution date
2020-Dec-18 01:59:15
Additional Information
Earth MOID
= 1.62847 au
Jupiter MOID
= 1.73484 au
T_jup
= 3.097
[ 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
10.8
n/a
MPO344305
diameter
diameter
46.269
km
0.140
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)
rotation period
rot_per
12.363
h
n/a
LCDB (Rev. 2020-October); Warner et al., 2009
Published Reference List:
[Albers, K.; Kragh, K.; Monnier, A.; Pligge, Z.; et al. (2010) Minor Planet Bull. 37, 152-158.]
geometric albedo
albedo
0.071
0.016
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)
1227 Geranium (1931 TD)
Discovered 1931-Oct-05 by Reinmuth, K. at Heidelberg
Reference:
DISCOVERY.DB
Last Updated:
2003-08-29
[ show close-approach data ]
Alternate Designations
1931 TD
= 1934 CL1
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2021-Jan-28 00:24 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin