| 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
$$
M_a = (11.904 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.904 |
| 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 |
2014-01-17 |
+3.0384 |
-1.115 |
| 2014-01-17 |
2014-04-18 |
-6.1527 |
+1.577 |
| 2014-04-23 |
2014-07-24 |
+15.9349 |
-3.849 |
| 2014-07-24 |
2015-01-19 |
-2.8363 |
+2.424 |
log10 r = log10(heliocentric distance / AU), Δ = geocentric distance (AU)
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
17:22:08.81 |
-41:37:48.7 |
HIP 84911 |
11.66 |
| 2026-05-12 12:00 |
17:22:04.00 |
-41:37:59.5 |
HIP 84911 |
10.91 |
| 2026-05-13 00:00 |
17:21:59.16 |
-41:38:10.1 |
HIP 84911 |
10.18 |
| 2026-05-13 12:00 |
17:21:54.29 |
-41:38:20.5 |
HIP 84911 |
9.47 |
| 2026-05-14 00:00 |
17:21:49.40 |
-41:38:30.8 |
HIP 84911 |
8.80 |
| 2026-05-14 12:00 |
17:21:44.49 |
-41:38:40.8 |
HIP 84911 |
8.18 |
| 2026-05-15 00:00 |
17:21:39.55 |
-41:38:50.7 |
HIP 84911 |
7.61 |
| 2026-05-15 12:00 |
17:21:34.59 |
-41:39:00.4 |
HIP 84911 |
7.12 |
| 2026-05-16 00:00 |
17:21:29.60 |
-41:39:09.9 |
HIP 84911 |
6.72 |
| 2026-05-16 12:00 |
17:21:24.59 |
-41:39:19.3 |
HIP 84911 |
6.43 |
| 2026-05-17 00:00 |
17:21:19.56 |
-41:39:28.4 |
HIP 84911 |
6.27 |
| 2026-05-17 12:00 |
17:21:14.51 |
-41:39:37.4 |
HIP 84911 |
6.24 |
| 2026-05-18 00:00 |
17:21:09.43 |
-41:39:46.2 |
HIP 84911 |
6.36 |
| 2026-05-18 12:00 |
17:21:04.34 |
-41:39:54.7 |
HIP 84911 |
6.62 |
| 2026-05-19 00:00 |
17:20:59.22 |
-41:40:03.1 |
HIP 84911 |
7.00 |
| 2026-05-19 12:00 |
17:20:54.09 |
-41:40:11.4 |
HIP 84911 |
7.48 |
| 2026-05-20 00:00 |
17:20:48.93 |
-41:40:19.4 |
HIP 84911 |
8.05 |
| 2026-05-20 12:00 |
17:20:43.75 |
-41:40:27.2 |
HIP 84911 |
8.69 |
| 2026-05-21 00:00 |
17:20:38.56 |
-41:40:34.9 |
HIP 84911 |
9.39 |
| 2026-05-21 12:00 |
17:20:33.35 |
-41:40:42.3 |
HIP 84911 |
10.14 |
| 2026-05-22 00:00 |
17:20:28.12 |
-41:40:49.6 |
HIP 84911 |
10.92 |
| 2026-05-22 12:00 |
17:20:22.87 |
-41:40:56.6 |
HIP 84911 |
11.74 |
| 2026-05-23 00:00 |
17:20:17.61 |
-41:41:03.5 |
HIP 84911 |
12.58 |
| 2026-05-23 12:00 |
17:20:12.33 |
-41:41:10.2 |
HIP 84771 |
12.86 |
| 2026-05-24 00:00 |
17:20:07.03 |
-41:41:16.7 |
HIP 84771 |
12.29 |
| 2026-05-24 12:00 |
17:20:01.72 |
-41:41:23.0 |
HIP 84771 |
11.78 |
| 2026-05-25 00:00 |
17:19:56.39 |
-41:41:29.1 |
HIP 84771 |
11.34 |
| 2026-05-25 12:00 |
17:19:51.05 |
-41:41:35.1 |
HIP 84771 |
10.97 |
| 2026-05-26 00:00 |
17:19:45.69 |
-41:41:40.8 |
HIP 84771 |
10.69 |
| 2026-05-26 12:00 |
17:19:40.32 |
-41:41:46.3 |
HIP 84771 |
10.50 |
| 2026-05-27 00:00 |
17:19:34.94 |
-41:41:51.7 |
HIP 84771 |
10.40 |
| 2026-05-27 12:00 |
17:19:29.54 |
-41:41:56.8 |
HIP 84771 |
10.41 |
| 2026-05-28 00:00 |
17:19:24.13 |
-41:42:01.8 |
HIP 84771 |
10.52 |
| 2026-05-28 12:00 |
17:19:18.71 |
-41:42:06.6 |
HIP 84771 |
10.73 |
| 2026-05-29 00:00 |
17:19:13.28 |
-41:42:11.1 |
HIP 84771 |
11.03 |
| 2026-05-29 12:00 |
17:19:07.83 |
-41:42:15.5 |
HIP 84771 |
11.41 |
| 2026-05-30 00:00 |
17:19:02.38 |
-41:42:19.7 |
HIP 84771 |
11.88 |
| 2026-05-30 12:00 |
17:18:56.91 |
-41:42:23.7 |
HIP 84771 |
12.42 |
| 2026-05-31 00:00 |
17:18:51.44 |
-41:42:27.5 |
HIP 84771 |
13.01 |
| 2026-05-31 12:00 |
17:18:45.95 |
-41:42:31.1 |
HIP 84771 |
13.66 |
| 2026-06-01 00:00 |
17:18:40.46 |
-41:42:34.5 |
HIP 84771 |
14.36 |
| 2026-06-01 12:00 |
17:18:34.96 |
-41:42:37.7 |
HIP 84771 |
15.10 |
| 2026-06-02 00:00 |
17:18:29.44 |
-41:42:40.7 |
HIP 84771 |
15.88 |