Appella

00988, 1922 VC, 1922VC, 1955 QJ1, 1955QJ1, J22V00C, J55Q01J

All data for this body: [vot]

MPC data
Name (number) Appella (988)
a 3.13881
e 0.23733
i / sin(i) 1.5733 / 0.02746
q 2.39387
Q 3.88375
ω 336.5745
Node 41.6877
m 120.3889
n 0.1772
Epoch 2460800.5
nobs 5461
nopp 37
Years observed 1939-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.153
ep 0.196
sin(ip) 0.023
G 0.150
H 11.620
Mass
D 22.42 0.159
pV 0.074 0.0046
Value
Rotational Period 120.000
Period quality 2
Spectral Class C
Spectral Class Score 9.112
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1526 0.1956 0.0234 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
20.43 0.215 0.215 Masiero 2011ApJ...741...68M NEATM
20.44 0.330 0.330 Masiero 2012ApJ...759L...8M NEATM
21.70 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
21.80 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
21.93 2.321 2.321 Ryan&Woodward 2010AJ....140..933R IRAS-STM
25.91 1.200 1.200 Tedesco 2002AJ....123.1056T STM
25.94 9.350 9.350 Masiero 2020PSJ.....1....5M NEATM
27.62 2.226 2.226 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
27.63 2.760 2.760 Ali-Lagoa 2018A&A...612A..85A NEATM
30.09 0.370 0.370 Usui 2011PASJ...63.1117U NEATM
30.14 9.660 9.660 Masiero 2020PSJ.....1....5M NEATM
32.01 3.200 3.200 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.042 0.0310 0.0310 Masiero 2020PSJ.....1....5M NEATM
0.043 0.0090 0.0090 Ali-Lagoa 2018A&A...612A..85A NEATM
0.049 0.0470 0.0470 Masiero 2020PSJ.....1....5M NEATM
0.058 0.0120 0.0120 Ali-Lagoa 2018A&A...612A..85A NEATM
0.081 0.0120 0.0120 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.087 0.0090 0.0090 Tedesco 2002AJ....123.1056T STM
0.097 0.0210 0.0210 Masiero 2012ApJ...759L...8M NEATM
0.131 0.0225 0.0225 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.140 0.0208 0.0208 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
11.62 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
120.0 2 Synodic Stephens 2013MPBu...40...92S Lightcurve
7.0 1 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B Tholen VIS Lazzaro 2004Icar..172..179L SPEC
C 0.852 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C S 0.800000 0.150000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
Cb Bus VIS Lazzaro 2004Icar..172..179L SPEC