Kirkwood

01578, 1944 DF, 1944DF, 1949 TF, 1949TF, 1951 AT, 1951AT, 1952 FK, 1952FK, J44D00F, J49T00F, J51A00T, J52F00K

All data for this body: [vot]

MPC data
Name (number) Kirkwood (1578)
a 3.92993
e 0.24139
i / sin(i) 0.8075 / 0.01409
q 2.98130
Q 4.87857
ω 1.8661
Node 74.0243
m 189.8005
n 0.1265
Epoch 2460800.5
nobs 5004
nopp 48
Years observed 1944-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.966
ep 0.204
sin(ip) 0.010
G 0.150
H 10.160
Mass
D 50.25 0.611
pV 0.052 0.0027
Value
Rotational Period 17.880
Period quality 3-
Spectral Class D
Spectral Class Score 25.725
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.9665 0.2037 0.0096 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
45.40 2.158 2.158 Ryan&Woodward 2010AJ....140..933R IRAS-STM
47.08 0.840 0.840 Grav 2012ApJ...744..197G NEATM
50.93 10.190 10.190 Ali-Lagoa 2018A&A...612A..85A NEATM
51.88 1.800 1.800 Tedesco 2002AJ....123.1056T STM
53.84 5.380 5.380 Ali-Lagoa 2018A&A...612A..85A NEATM
57.14 1.270 1.270 Usui 2011PASJ...63.1117U NEATM
58.63 3.647 3.647 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.042 0.0050 0.0050 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.052 0.0040 0.0040 Tedesco 2002AJ....123.1056T STM
0.058 0.0120 0.0120 Ali-Lagoa 2018A&A...612A..85A NEATM
0.063 0.0100 0.0100 Grav 2012ApJ...744..197G NEATM
0.064 0.0260 0.0260 Ali-Lagoa 2018A&A...612A..85A NEATM
0.069 0.0073 0.0073 Ryan&Woodward 2010AJ....140..933R IRAS-STM
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
10.16 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.518 2 Synodic Klinglesmith 2013MPBu...40...65K Lightcurve
17.885 3- Synodic Behrend LCDB Lightcurve
17.9 2 Synodic Slyusarev LCDB Lightcurve
448.3 2 Sidereal Durech 2019A&A...631A...2D Model
448.32785 2 Sidereal Martikainen 2021A&A...649A..98M Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D Barucci-Tholen VIS Fitzsimmons 1994A&A...282..634F SPEC
D Barucci-Tholen VIS Lagerkvist 1993MNRAS.260..679L SPEC
D DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
D 0.89 Bus VIS Carvano 2010A&A...510A..43C PHOT
D 0.960000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
D D 0.8709 0.8709 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT