Ichikawa

04903, 1953 FU, 1953FU, 1972 TM1, 1972TM1, 1977 OG, 1977OG, 1980 BU4, 1980BU4, 1983 TG, 1983TG, 1989 UD, 1989UD, J53F00U, J72T01M, J77O00G, J80B04U, J83T00G, J89U00D

All data for this body: [vot]

MPC data
Name (number) Ichikawa (4903)
a 3.14039
e 0.18659
i / sin(i) 2.5446 / 0.04440
q 2.55443
Q 3.72635
ω 250.1009
Node 90.6948
m 162.3550
n 0.1771
Epoch 2460800.5
nobs 4009
nopp 31
Years observed 1953-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.151
ep 0.152
sin(ip) 0.024
G 0.150
H 12.810
Mass
D 14.90 0.362
pV 0.109 0.0081
Value
Rotational Period 20.400
Period quality 2-
Spectral Class C
Spectral Class Score 19.700
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
656 Beagle 0 Beagle Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis 0.2000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
656 Beagle 620 Beagle -2.4100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1505 0.1525 0.0241 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.79 0.389 0.389 Masiero 2011ApJ...741...68M NEATM
15.08 5.270 5.270 Masiero 2020PSJ.....1....5M NEATM
15.58 1.070 1.070 Usui 2011PASJ...63.1117U NEATM
16.03 3.210 3.210 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.058 0.0480 0.0480 Masiero 2020PSJ.....1....5M NEATM
0.060 0.0240 0.0240 Ali-Lagoa 2018A&A...612A..85A NEATM
0.117 0.0087 0.0087 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.81 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
20.403 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.92 Bus VIS Carvano 2010A&A...510A..43C PHOT
C 0.990000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
C C 0.4018 0.5150 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.4676 0.5150 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.6190 0.5150 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT