Asteroids with Satellites Database--Johnston's Archive
(66652)
Borasisi
and Pabu
compiled by Wm. Robert Johnston
last updated
20 September 2014
--Orbital and physical data--
(See this page for definitions of quantities; source codes in brackets, see this link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)
dynamical type, primary:
TNO, Cubewano
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
43.616 AU
| |
orbital period P: |
288.058 yr
(= 105213.1 d)
| |
eccentricity e: |
0.08462
| |
perihelion distance q: |
39.9254 AU
| |
aphelion distance Q: |
47.307 AU
| |
inclination i: |
0.562939°
| |
argument of perihelion ω: |
196.692°
| |
ascending node Ω: |
84.588°
| |
mean anomaly M: |
56.624°
| |
perihelion passage TP: |
1969 Jan 30
| |
Epoch: |
2014 May 23
| |
data arc: |
1999-2012
(51 obs.)
| |
Earth MOID: |
38.9085 AU
| |
Jupiter Tisserand invariant TJ: |
5.889
|
| Neptune Tisserand invariant TN: | 3.09 [*D] |
orbital data, secondary:
|
semimajor axis as: |
4528
± 12 km
[G11a]
| |
separation/primary radius as/rp: | 72 [*D] | |
separation/Hill radius as/rH: | 0.0091 [*D] | |
orbital period Ps: |
46.2888
± 0.0018
d [G11a]
| |
eccentricity es: |
0.4700
± 0.0018
[G11a]
| |
inclination is: | 54.31° ± 0.03° [G11a] | |
ascending node Ωs: | 70.44° ± 0.47° [G11a] | |
argument of pericenter ωs: | 238.85° ± 0.66° [G11a] | |
mean anomaly M: | 214.4° ± 0.5° [G11a] | |
Epoch: | 2000 Dec 21.5 | |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
5.9
[MPC]
6.121 ± 0.07 [V14a]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
163
± 32/66
km [V14a]
| |
geometric albedo: |
0.236
± 0.438/0.077
[V14a]
| |
color index U-B: |
?
| |
color index B-V: |
0.82
[H02a]
| |
color index V-R: | 0.646 ± 0.058 [H02a] | |
color index B-R: | 1.47 [H02a] | |
color index V-I: | 1.3 [D01b] | |
color index R-J: | 1.36 [*D] | |
color index V-J: | 2.01 ± 0.07 [M03c] | |
color index J-H: | 0.49 ± 0.09 [D06a] | |
color index V-H: | 2.5 [*D] | |
taxonomic type: |
?
| |
mass m: |
3.43x1018
± 2.7x1016
kg [G11a]
| |
density ρ: |
2.1
± 2.6/1.2
g/cm3[V14a]
| |
Hill radius rH: |
500000 km [*D]
|
other data, primary:
|
diameter dp: |
126
± 25/51
km [V14a]
| |
rotation period RPp: |
6.4
± 1
h [K06a]
| |
amplitude in mag., rotational ΔM: |
0.08
± 0.02
[K06a]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
103
± 20/42
km [V14a]
| |
diameter ratio ds/dp: |
0.817
± 0.008
[S06c]
| |
component mag. difference ΔM: |
0.4
[* D]
| |
rotation period RPs: |
?
| |
|
|
--
(66652) Borasisi and Pabu
--discovery and notes:
Primary discovered
1999 Sep 08
from
Mauna Kea Observatory, Hawaii, USA
by
C. A. Trujillo, J. X. Luu, and D. C. Jewitt.
Alternate designation(s):
1999 RZ253
.
Permanent number assigned 2003 Sep 10.
Named 2007 Sep 26 for the mythological character in Cat's Cradle [MPC60731].
Companion discovered
2003 Apr 23
using
Hubble Space Telescope
observations from Hubble Space Telescope.
Announced
2003 Jun 06.
Permanent designation I Pabu, assigned 2007 Sep 26; named for the mythological character in Cat's Cradle [*].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Vilenius, E., Kiss, C., Müller, T., Mommert, M., Santos-Sanz, P., Pál, A., Stansberry, J., Mueller, M., Peixinho, N., Lellouch, E., Fornasier, S., Delsanti, A., Thirouin, A., Ortiz, J. L., Duffard, R., Perna, D., & Henry, F. 2014, Astronomy and Astrophysics "TNOs are Cool": A survey of the trans-Neptunian region. X. Analysis of classical Kuiper belt objects from Herschel and Spitzer observations
- Grundy, W. M., Noll, K. S., Nimmo, F., Roe, H. G., Buie, M. W., Porter, S. B., Benecchi, S. D., Stephens, D. C., Levison, H. F., & Stansberry, J. A. 2011, Icarus Five new and three improved mutual orbits of transneptunian binaries
- Noll, Keith S., Stephens, Denise C., Grundy, Will M., & Griffin, Ian 2004, Icarus The orbit, mass, and albedo of transneptunian binary (66652) 1999 RZ <SUB>253</SUB>
- Noll, K. S., Stephens, D. C., Grundy, W. M., Osip, D. J., & Griffin, I. 2004, Bulletin of the American Astronomical Society The Orbits, Masses, and Albedos of Transneptunian Binaries
- Denissenko, D. V. 2004, Astronomy Letters Occultations of Stars Brighter Than 15 mag by the Largest Trans-Neptunian Objects in 2004-2014
- Noll, Keith 2002, HST Proposal The Orbit of a Newly Discovered Transneptunian Binary
- Brown, M. E. 2000, Bulletin of the American Astronomical Society Near-infrared spectroscopy of Kuiper belt objects
- Veillet, C., Cuillandre, J. C., Woodworth, D. R., McDonald, J., & Marsden, B. G. 2000, Minor Planet Circulars 1999 RZ253
- Trujillo, C. A., Luu, J. X., Jewitt, D. C., Tholen, D. J., Sheppard, S. S., & Marsden, B. G. 2000, Minor Planet Circulars 1999 RZ253
©
2003-2012, 2014
by Wm. Robert Johnston.
Last modified
20 September 2014.
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