C/2013 V1 (Boattini)
| Parameter |
Value |
| Designation |
C/2013 V1 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2014-04-21T05:35:23.812800Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:42Z |
| Obs used |
2087 |
| NEO |
- |
| M1 |
10.900 |
| K1 |
8.750 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2014-02-11.0000000 |
| e |
1.00142704 |
| q (au) |
1.660846 |
| a (au) |
-1163.839039 |
| i (deg) |
65.310081 |
| Ω (om, deg) |
72.810325 |
| ω (w, deg) |
48.034651 |
| M (ma, deg) |
-0.001719 |
Magnitude
Scatter + Global Linear
$$
M_a = (11.906 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.906 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.999 |
| 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
Residuals (Piecewise)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| Start (UTC) |
End (UTC) |
a |
b |
| 2013-11-04 |
2014-01-18 |
+3.0063 |
-1.102 |
| 2014-01-18 |
2014-04-18 |
-6.0675 |
+1.551 |
| 2014-04-23 |
2014-07-24 |
+15.9357 |
-3.851 |
| 2014-07-24 |
2015-01-19 |
-2.8305 |
+2.420 |
log10 r = log10(heliocentric distance / AU), Δ = geocentric distance (AU)
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
17:24:40.94 |
-40:31:06.6 |
HIP 85167 |
14.77 |
| 2026-02-03 12:00 |
17:24:44.51 |
-40:31:27.7 |
HIP 85167 |
14.66 |
| 2026-02-04 00:00 |
17:24:48.04 |
-40:31:48.9 |
HIP 85167 |
14.58 |
| 2026-02-04 12:00 |
17:24:51.53 |
-40:32:10.2 |
HIP 85167 |
14.54 |
| 2026-02-05 00:00 |
17:24:54.98 |
-40:32:31.5 |
HIP 85167 |
14.54 |
| 2026-02-05 12:00 |
17:24:58.40 |
-40:32:53.0 |
HIP 85167 |
14.56 |
| 2026-02-06 00:00 |
17:25:01.78 |
-40:33:14.5 |
HIP 85167 |
14.62 |
| 2026-02-06 12:00 |
17:25:05.12 |
-40:33:36.0 |
HIP 85167 |
14.71 |
| 2026-02-07 00:00 |
17:25:08.43 |
-40:33:57.7 |
HIP 85167 |
14.83 |
| 2026-02-07 12:00 |
17:25:11.69 |
-40:34:19.4 |
HIP 85167 |
14.98 |
| 2026-02-08 00:00 |
17:25:14.92 |
-40:34:41.2 |
HIP 85167 |
15.15 |
| 2026-02-08 12:00 |
17:25:18.11 |
-40:35:03.0 |
HIP 85167 |
15.35 |
| 2026-02-09 00:00 |
17:25:21.26 |
-40:35:24.9 |
HIP 85366 |
14.89 |
| 2026-02-09 12:00 |
17:25:24.36 |
-40:35:46.9 |
HIP 85366 |
14.25 |
| 2026-02-10 00:00 |
17:25:27.43 |
-40:36:08.9 |
HIP 85366 |
13.62 |
| 2026-02-10 12:00 |
17:25:30.46 |
-40:36:31.0 |
HIP 85366 |
13.00 |
| 2026-02-11 00:00 |
17:25:33.45 |
-40:36:53.2 |
HIP 85366 |
12.40 |
| 2026-02-11 12:00 |
17:25:36.40 |
-40:37:15.4 |
HIP 85366 |
11.81 |
| 2026-02-12 00:00 |
17:25:39.30 |
-40:37:37.7 |
HIP 85366 |
11.25 |
| 2026-02-12 12:00 |
17:25:42.17 |
-40:38:00.0 |
HIP 85366 |
10.70 |
| 2026-02-13 00:00 |
17:25:44.99 |
-40:38:22.4 |
HIP 85366 |
10.17 |
| 2026-02-13 12:00 |
17:25:47.78 |
-40:38:44.8 |
HIP 85366 |
9.66 |
| 2026-02-14 00:00 |
17:25:50.52 |
-40:39:07.3 |
HIP 85366 |
9.19 |
| 2026-02-14 12:00 |
17:25:53.22 |
-40:39:29.9 |
HIP 85366 |
8.74 |
| 2026-02-15 00:00 |
17:25:55.87 |
-40:39:52.5 |
HIP 85366 |
8.32 |
| 2026-02-15 12:00 |
17:25:58.49 |
-40:40:15.1 |
HIP 85366 |
7.94 |
| 2026-02-16 00:00 |
17:26:01.06 |
-40:40:37.8 |
HIP 85366 |
7.60 |
| 2026-02-16 12:00 |
17:26:03.59 |
-40:41:00.6 |
HIP 85366 |
7.30 |
| 2026-02-17 00:00 |
17:26:06.07 |
-40:41:23.4 |
HIP 85366 |
7.05 |
| 2026-02-17 12:00 |
17:26:08.51 |
-40:41:46.2 |
HIP 85366 |
6.85 |
| 2026-02-18 00:00 |
17:26:10.91 |
-40:42:09.1 |
HIP 85366 |
6.71 |
| 2026-02-18 12:00 |
17:26:13.27 |
-40:42:32.1 |
HIP 85366 |
6.63 |
| 2026-02-19 00:00 |
17:26:15.58 |
-40:42:55.0 |
HIP 85366 |
6.60 |
| 2026-02-19 12:00 |
17:26:17.84 |
-40:43:18.0 |
HIP 85366 |
6.63 |
| 2026-02-20 00:00 |
17:26:20.06 |
-40:43:41.1 |
HIP 85366 |
6.71 |
| 2026-02-20 12:00 |
17:26:22.24 |
-40:44:04.2 |
HIP 85366 |
6.85 |
| 2026-02-21 00:00 |
17:26:24.37 |
-40:44:27.3 |
HIP 85366 |
7.03 |
| 2026-02-21 12:00 |
17:26:26.46 |
-40:44:50.5 |
HIP 85366 |
7.25 |
| 2026-02-22 00:00 |
17:26:28.50 |
-40:45:13.7 |
HIP 85366 |
7.51 |
| 2026-02-22 12:00 |
17:26:30.50 |
-40:45:36.9 |
HIP 85366 |
7.80 |
| 2026-02-23 00:00 |
17:26:32.45 |
-40:46:00.2 |
HIP 85366 |
8.12 |
| 2026-02-23 12:00 |
17:26:34.35 |
-40:46:23.5 |
HIP 85366 |
8.47 |
| 2026-02-24 00:00 |
17:26:36.21 |
-40:46:46.8 |
HIP 85366 |
8.83 |