Rollandia

01269, 1902 EA, 1902EA, 1906 SA, 1906SA, 1907 WB, 1907WB, 1918 EG, 1918EG, 1926 GC1, 1926GC1, 1930 SH, 1930SH, 1931 VY, 1931VY, 1936 LE, 1936LE, 1961 PB, 1961PB, J02E00A, J06S00A, J07W00B, J18E00G, J26G01C, J30S00H, J31V00Y, J36L00E, J61P00B

All data for this body: [vot]

MPC data
Name (number) Rollandia (1269)
a 3.91395
e 0.09635
i / sin(i) 2.7574 / 0.04811
q 3.53685
Q 4.29106
ω 17.8599
Node 134.6317
m 276.0239
n 0.1273
Epoch 2460800.5
nobs 5383
nopp 61
Years observed 1906-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.962
ep 0.124
sin(ip) 0.033
G 0.150
H 8.770
Mass
D 105.79 0.820
pV 0.047 0.0021
Value
Rotational Period 60.400
Period quality 2
Spectral Class D
Spectral Class Score 78.790
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.9618 0.1245 0.0332 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
104.89 1.040 1.040 Grav 2012ApJ...744..197G NEATM
105.19 2.800 2.800 Tedesco 2002AJ....123.1056T STM
105.27 6.643 6.643 Ryan&Woodward 2010AJ....140..933R IRAS-STM
107.85 1.660 1.660 Usui 2011PASJ...63.1117U NEATM
108.09 21.620 21.620 Ali-Lagoa 2018A&A...612A..85A NEATM
111.95 5.216 5.216 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
99.44 9.940 9.940 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.042 0.0040 0.0040 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.047 0.0030 0.0030 Tedesco 2002AJ....123.1056T STM
0.048 0.0090 0.0090 Grav 2012ApJ...744..197G NEATM
0.049 0.0066 0.0066 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.054 0.0220 0.0220 Ali-Lagoa 2018A&A...612A..85A NEATM
0.064 0.0130 0.0130 Ali-Lagoa 2018A&A...612A..85A 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
8.77 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
15.32 2 Synodic Fauvaud 2013MPBu...40..224F Lightcurve
15.4 2 Synodic Franco LCDB Lightcurve
17.12 2 Synodic Warner 2019MPBu...46..406W Lightcurve
17.36 2 Synodic Warner 2019MPBu...46..406W Lightcurve
19.98 2 Synodic Warner 2017MPBu...44...36W Lightcurve
28.277 2 Synodic Polakis 2019MPBu...46..287P Lightcurve
30.98 2 Synodic Slyusarev LCDB Lightcurve
39.81 2 Synodic Colazo 2021MPBu...48...50C Lightcurve
60.45 2 Synodic Polakis 2020MPBu...47..314P Lightcurve
65.0 Synodic Romanishin 2021MPBu...48..102R Lightcurve
72.0 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
D Bus-DeMeo NIR De Pra 2018Icar..311...35D SPEC
D Bus-DeMeo NIR Gartrelle 2021Icar..35414043G SPEC
D Bus-DeMeo VIS De Pra 2018Icar..311...35D SPEC
D Bus-DeMeo VISNIR Gartrelle 2021Icar..36114349G PHOT
D Tholen VIS Dahlgren 1997A&A...323..606D SPEC
D 0.980000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
D 0.990000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC