P/2011 V1 (Boattini)
| Parameter |
Value |
| Designation |
P/2011 V1 (Boattini) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2011-05-11T22:09:40.135680Z |
| Orbit solution date (soln_date, UTC) |
2023-10-29T03:13:06Z |
| Obs used |
26 |
| NEO |
- |
| M1 |
17.700 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2011-11-01.0000000 |
| e |
0.55532072 |
| q (au) |
1.709344 |
| a (au) |
3.843992 |
| i (deg) |
7.397717 |
| Ω (om, deg) |
60.084820 |
| ω (w, deg) |
259.544253 |
| M (ma, deg) |
22.634386 |
Magnitude
Scatter + Global Linear
$$
M_a = (17.269 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
17.269 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
10.000 |
| Parameter |
Symbol |
Range |
Description |
| Absolute magnitude at 1 AU from Sun and Earth |
H0 |
-5 to 20 |
Intrinsic brightness of the comet |
| Photometric slope parameter |
n |
2 to 6 |
Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor |
gf |
0.8 to 1 |
Degree of forward scattering |
| Backward scattering asymmetry factor |
gb |
-1 to -0.5 |
Degree of backward scattering |
| Partitioning coefficient |
k |
0.8 to 1 |
Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio |
δ90 |
1 to 10 |
Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Finding Chart
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
19:19:37.10 |
-26:02:41.4 |
HIP 95027 |
25.23 |
| 2026-02-03 12:00 |
19:21:03.35 |
-26:00:55.0 |
HIP 95177 |
12.89 |
| 2026-02-04 00:00 |
19:22:29.65 |
-25:59:05.7 |
HIP 95177 |
14.92 |
| 2026-02-04 12:00 |
19:23:55.99 |
-25:57:13.5 |
HIP 95461 |
17.44 |
| 2026-02-05 00:00 |
19:25:22.38 |
-25:55:18.3 |
HIP 95461 |
5.30 |
| 2026-02-05 12:00 |
19:26:48.81 |
-25:53:20.2 |
HIP 95606 |
18.33 |
| 2026-02-06 00:00 |
19:28:15.28 |
-25:51:19.2 |
HIP 95655 |
23.55 |
| 2026-02-06 12:00 |
19:29:41.79 |
-25:49:15.2 |
HIP 96012 |
21.92 |
| 2026-02-07 00:00 |
19:31:08.34 |
-25:47:08.4 |
HIP 96012 |
3.46 |
| 2026-02-07 12:00 |
19:32:34.93 |
-25:44:58.6 |
HIP 96139 |
17.19 |
| 2026-02-08 00:00 |
19:34:01.56 |
-25:42:45.8 |
HIP 96139 |
24.42 |
| 2026-02-08 12:00 |
19:35:28.21 |
-25:40:30.2 |
HIP 96409 |
15.75 |
| 2026-02-09 00:00 |
19:36:54.90 |
-25:38:11.6 |
HIP 96553 |
11.77 |
| 2026-02-09 12:00 |
19:38:21.62 |
-25:35:50.1 |
HIP 96553 |
9.76 |
| 2026-02-10 00:00 |
19:39:48.37 |
-25:33:25.7 |
HIP 96635 |
22.81 |
| 2026-02-10 12:00 |
19:41:15.14 |
-25:30:58.3 |
HIP 96971 |
21.29 |
| 2026-02-11 00:00 |
19:42:41.94 |
-25:28:28.1 |
HIP 96971 |
12.56 |
| 2026-02-11 12:00 |
19:44:08.76 |
-25:25:54.9 |
HIP 97186 |
14.49 |
| 2026-02-12 00:00 |
19:45:35.60 |
-25:23:18.8 |
HIP 97186 |
5.56 |
| 2026-02-12 12:00 |
19:47:02.46 |
-25:20:39.8 |
HIP 97390 |
18.88 |
| 2026-02-13 00:00 |
19:48:29.34 |
-25:17:57.9 |
HIP 97390 |
22.60 |
| 2026-02-13 12:00 |
19:49:56.24 |
-25:15:13.1 |
HIP 97637 |
10.29 |
| 2026-02-14 00:00 |
19:51:23.15 |
-25:12:25.3 |
HIP 97637 |
11.47 |
| 2026-02-14 12:00 |
19:52:50.07 |
-25:09:34.7 |
HIP 97835 |
2.74 |
| 2026-02-15 00:00 |
19:54:17.00 |
-25:06:41.2 |
HIP 97835 |
20.24 |
| 2026-02-15 12:00 |
19:55:43.94 |
-25:03:44.8 |
HIP 98178 |
18.83 |
| 2026-02-16 00:00 |
19:57:10.88 |
-25:00:45.5 |
HIP 98200 |
3.05 |
| 2026-02-16 12:00 |
19:58:37.83 |
-24:57:43.4 |
HIP 98200 |
18.99 |
| 2026-02-17 00:00 |
20:00:04.78 |
-24:54:38.3 |
HIP 98588 |
20.13 |
| 2026-02-17 12:00 |
20:01:31.74 |
-24:51:30.4 |
HIP 98588 |
0.76 |
| 2026-02-18 00:00 |
20:02:58.69 |
-24:48:19.7 |
HIP 98765 |
16.00 |
| 2026-02-18 12:00 |
20:04:25.64 |
-24:45:06.1 |
HIP 98765 |
15.45 |
| 2026-02-19 00:00 |
20:05:52.58 |
-24:41:49.6 |
HIP 99098 |
17.47 |
| 2026-02-19 12:00 |
20:07:19.52 |
-24:38:30.3 |
HIP 99098 |
8.44 |
| 2026-02-20 00:00 |
20:08:46.45 |
-24:35:08.2 |
HIP 99098 |
25.30 |
| 2026-02-20 12:00 |
20:10:13.37 |
-24:31:43.2 |
HIP 99493 |
24.94 |
| 2026-02-21 00:00 |
20:11:40.28 |
-24:28:15.4 |
HIP 99493 |
14.88 |
| 2026-02-21 12:00 |
20:13:07.18 |
-24:24:44.9 |
HIP 99603 |
23.95 |
| 2026-02-22 00:00 |
20:14:34.06 |
-24:21:11.5 |
HIP 99817 |
10.09 |
| 2026-02-22 12:00 |
20:16:00.92 |
-24:17:35.3 |
HIP 99817 |
14.68 |
| 2026-02-23 00:00 |
20:17:27.77 |
-24:13:56.3 |
HIP 100068 |
9.16 |
| 2026-02-23 12:00 |
20:18:54.59 |
-24:10:14.6 |
HIP 100068 |
12.39 |
| 2026-02-24 00:00 |
20:20:21.40 |
-24:06:30.1 |
HIP 100148 |
23.62 |