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