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Sunday, November 15, 2015

2002 UP11 vs 2015 VF105

See update about this case:
https://groups.yahoo.com/neo/groups/mpml/conversations/messages/31516

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2002 UP11 and 2015 VF105 have similar orbit parameters.
The uncertainty for 2015 VF105 is unknown and I do not find its observations.


Using the Mercury software, it seems that they had a relative close approach on May 8th, 2001 when their nominal relative distance and velocity were:
  • distance 0.00147 AU
  • velocity: ca 5 m/s
Maybe in the future, when further observations will be available, it will be possible to study them looking for a common origin

JPL Small-Body Database Browser:


(2002 UP11)
Classification: Mars-crossing Asteroid          SPK-ID: 3224224
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]

Orbital Elements at Epoch 2457200.5 (2015-Jun-27.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .382955379120253 0.00010057
a 2.187589320416579 0.00042822 AU
q 1.349840222857032 4.6502e-05 AU
i 22.87063099452443 0.0044292 deg
node 43.70403288617293 0.0014051 deg
peri 62.82185003664876 0.00090087 deg
M 293.5443079306065 0.40392 deg
tp 2457418.660842947343
(2016-Jan-31.16084295)
1.39 JED
period 1181.808525581734
3.24
0.34701
0.0009501
d
yr
n .3046178735449497 8.9443e-05 deg/d
Q 3.025338417976127 0.0005922 AU
Orbit Determination Parameters
   # obs. used (total)      17  
   data-arc span      49 days  
   first obs. used      2002-10-04  
   last obs. used      2002-11-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      6  
   fit RMS      .53879  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 03:11:31  

Additional Information
 Earth MOID = .485591 AU 
 T_jup = 3.482 


(2015 VF105)
Classification: Mars-crossing Asteroid          SPK-ID: 3734494
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]

Orbital Elements at Epoch 2457300.5 (2015-Oct-05.0) TDB
Reference: E2015-VE1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.3831181 n/a
a 2.1883016 n/a AU
q 1.3499236 n/a AU
i 22.88002 n/a deg
node 43.69986 n/a deg
peri 62.82823 n/a deg
M 323.14568 n/a deg
tp 2457421.5445051
(2016-Feb-03.04450510)
n/a JED
period 1182.3857240
3.24
n/a
n/a
d
yr
n 0.30446917 n/a deg/d
Q 3.0266796 n/a AU
Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      62 days  
   first obs. used      2015-09-11  
   last obs. used      2015-11-12  
   # oppositions      1  
   two-body model      T  
   fit RMS      0.13  
   data source      MPC:mp1  
   producer      MPCW  

Additional Information
 T_jup = 3.482 

Graph





Kind Regards,
Alessandro Odasso

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