Continued activity in P/2013 P5 PANSTARRS - Unexpected comet, rotational break-up, or rubbing binary asteroid?

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Table 1

Observation log and geometry.

Date¹	Telescope/Instrument	r ²	Δ ³	φ ⁴	PsAng⁵	PsAMV⁶	Airm.⁷	Exp.T.⁸	Filter

2013-Aug.-30.367	CFHT/MegaPrime	2.127	1.128	5.3	200.4	245.2	1.182	900	r
2013-Aug.-30.380	CFHT/MegaPrime	2.127	1.128	5.3	200.4	245.2	1.139	900	g
2013-Sep.-01.153	NTT/EFOSC2	2.125	1.124	4.7	190.9	245.1	1.247	4500	R
2013-Sep.-03.250	NTT/EFOSC2	2.122	1.120	4.2	176.9	245.0	1.264	13 500	R
2013-Sep.-05.342	CFHT/MegaPrime	2.119	1.117	4.0	159.6	245.0	1.206	1800	r
2013-Sep.-06.204	NTT/EFOSC2	2.118	1.116	4.0	152.3	245.0	1.234	10 200	V
2013-Sep.-10.412	CFHT/MegaPrime	2.113	1.114	5.0	122.6	244.8	1.065	1800	r
2013-Sep.-11.851	CA1.23 m/DLR-MKIII	2.111	1.115	5.4	115.5	244.8	1.720	3300	R
2013-Sep.-25.850	CA1.23 m/DLR-MKIII	2.092	1.145	12.2	86.3	244.4	1.665	2100	R
2013-Sep.-28.264	CFHT/MegaPrime	2.089	1.154	13.3	84.3	244.4	1.218	1048	r
2013-Sep.-29.213	CFHT/MegaPrime	2.088	1.158	13.8	83.6	244.3	1.575	540	r
2013-Sep.-30.248	CFHT/MegaPrime	2.087	1.163	13.8	82.9	244.3	1.277	540	r
2013-Sep.-30.235	CFHT/MegaPrime	2.087	1.163	13.8	82.9	244.3	1.267	540	g
2013-Sep.-30.251	CFHT/MegaPrime	2.087	1.163	13.8	82.9	244.3	1.262	540	i
2013-Oct.-04.202	Perkins/PRISM	2.082	1.182	16.0	80.7	244.2	1.245	3600	R
2013-Oct.-05.125	TRAPPIST/PL3041-BB	2.080	1.188	16.5	80.2	244.2	1.160	20 880	Rc

Notes.

⁽¹⁾

UT, mid-exposure;

⁽²⁾

and

⁽³⁾

helio- and geocentric distances [AU];

⁽⁴⁾

solar phase angle [degrees];

⁽⁵⁾

and

⁽⁶⁾

position angles of the extended Sun-target radius vector, and the negative of the target’s heliocentric velocity vector, respectively, as seen in the observer’s plane of sky [degrees as measured N to E];

⁽⁷⁾

airmass;

⁽⁸⁾

total exposure time [s].

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