Lyka

00917, 1915 RR, 1915RR, 1950 BS, 1950BS, 1951 JJ, 1951JJ, J15R00R, J50B00S, J51J00J

All data for this body: [vot]

MPC data
Name (number) Lyka (917)
a 2.38177
e 0.20030
i / sin(i) 5.1239 / 0.08931
q 1.90470
Q 2.85885
ω 359.7297
Node 343.3702
m 304.9269
n 0.2681
Epoch 2460800.5
nobs 8361
nopp 52
Years observed 1926-2025
rms 0.53
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.381
ep 0.163
sin(ip) 0.092
G 0.150
H 11.720
Mass
D 35.61 0.135
pV 0.043 0.0040
Value
Rotational Period 7.860
Period quality 3
Spectral Class Cb
Spectral Class Score 21.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3814 0.1627 0.0918 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
22.62 5.740 5.740 Masiero 2021PSJ.....2..162M NEATM
24.64 5.880 5.880 Masiero 2020PSJ.....1....5M NEATM
25.84 3.110 3.110 Ryan&Woodward 2010AJ....140..933R IRAS-STM
26.65 9.280 9.280 Nugent 2016AJ....152...63N NEATM
27.21 6.360 6.360 Masiero 2020PSJ.....1....5M NEATM
28.10 3.900 3.900 Tedesco 2002AJ....123.1056T STM
28.36 10.420 10.420 Masiero 2020PSJ.....1....5M NEATM
29.44 8.460 8.460 Masiero 2020PSJ.....1....5M NEATM
31.29 0.490 0.490 Usui 2011PASJ...63.1117U NEATM
31.73 6.350 6.350 Ali-Lagoa 2018A&A...612A..85A NEATM
34.79 2.560 2.560 Masiero 2012ApJ...759L...8M NEATM
34.88 0.180 0.180 Masiero 2014ApJ...791..121M NEATM
35.53 3.550 3.550 Ali-Lagoa 2018A&A...612A..85A NEATM
37.84 0.227 0.227 Masiero 2011ApJ...741...68M NEATM
43.69 8.722 8.722 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.026 0.0090 0.0090 Masiero 2012ApJ...759L...8M NEATM
0.034 0.0220 0.0220 Masiero 2020PSJ.....1....5M NEATM
0.036 0.0070 0.0070 Ali-Lagoa 2018A&A...612A..85A NEATM
0.040 0.1100 0.1100 Nugent 2016AJ....152...63N NEATM
0.041 0.0161 0.0161 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.043 0.0370 0.0370 Masiero 2020PSJ.....1....5M NEATM
0.045 0.0180 0.0180 Ali-Lagoa 2018A&A...612A..85A NEATM
0.045 0.0290 0.0290 Masiero 2020PSJ.....1....5M NEATM
0.048 0.0360 0.0360 Masiero 2020PSJ.....1....5M NEATM
0.049 0.0200 0.0200 Masiero 2011ApJ...741...68M NEATM
0.054 0.0200 0.0310 Masiero 2021PSJ.....2..162M NEATM
0.060 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.089 0.0310 0.0310 Tedesco 2002AJ....123.1056T STM
0.109 0.0258 0.0258 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
11.72 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.838 2 Synodic Ditteon 2018MPBu...45..117D Lightcurve
7.867 3 Synodic Behrend LCDB Lightcurve
7.881 2+ Synodic Brincat 2019MPBu...46..230B Lightcurve
7.88167 2 Sidereal Athanasopoulos 2022A&A...666A.116A Model
7.8838 3 Synodic Behrend LCDB Lightcurve
7.889 3 Synodic Carreno 2019MPBu...46..200C Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.534 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C P 0.800000 0.150000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
Cb Bus-DeMeo VISNIR Arredondo 2021Icar..36814619A SPEC
X Bus VIS Lazzaro 2004Icar..172..179L SPEC
X Tholen VIS Lazzaro 2004Icar..172..179L SPEC