Annika

00817, 1916 CD, 1916CD, J16C00D

All data for this body: [vot]

MPC data
Name (number) Annika (817)
a 2.58916
e 0.18063
i / sin(i) 11.3354 / 0.19655
q 2.12147
Q 3.05684
ω 284.8153
Node 125.4168
m 127.2859
n 0.2366
Epoch 2460800.5
nobs 5024
nopp 43
Years observed 1916-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.590
ep 0.158
sin(ip) 0.187
G 0.150
H 10.660
Mass
D 23.65 0.084
pV 0.143 0.0080
Value
Rotational Period 10.500
Period quality 3
Spectral Class S
Spectral Class Score 11.710
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5897 0.1577 0.1866 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
17.65 4.400 4.400 Nugent 2016AJ....152...63N NEATM
22.05 1.700 1.700 Tedesco 2002AJ....123.1056T STM
22.89 0.100 0.100 Masiero 2014ApJ...791..121M NEATM
23.02 0.340 0.340 Usui 2011PASJ...63.1117U NEATM
23.20 2.320 2.320 Ali-Lagoa 2018A&A...612A..85A NEATM
24.20 2.420 2.420 Ali-Lagoa 2018A&A...612A..85A NEATM
24.38 0.500 0.500 Masiero 2012ApJ...759L...8M NEATM
26.57 0.191 0.191 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.120 0.0098 0.0098 Masiero 2011ApJ...741...68M NEATM
0.174 0.0300 0.0300 Tedesco 2002AJ....123.1056T STM
0.187 0.0250 0.0250 Masiero 2012ApJ...759L...8M NEATM
0.190 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM
0.190 0.0380 0.0380 Ali-Lagoa 2018A&A...612A..85A NEATM
0.207 0.0410 0.0410 Ali-Lagoa 2018A&A...612A..85A NEATM
0.260 0.1300 0.1300 Nugent 2016AJ....152...63N 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
10.66 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
10.56 3 Synodic Bembrick 2003MPBu...30...20B Lightcurve
10.56238 2 Sidereal Durech 2020A&A...643A..59D Model
10.564 3 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
S Tholen VIS Lazzaro 2004Icar..172..179L SPEC
S 0.285 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 1.000000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
SI Bus VIS Lazzaro 2004Icar..172..179L SPEC