| Parameter |
Value |
| Designation |
C/2013 V3 (Nevski) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2013-10-29T21:44:27.254400Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:42Z |
| Obs used |
904 |
| NEO |
- |
| M1 |
15.400 |
| K1 |
5.750 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2013-12-03.0000000 |
| e |
0.89097069 |
| q (au) |
1.386694 |
| a (au) |
12.718543 |
| i (deg) |
32.134529 |
| Ω (om, deg) |
100.918155 |
| ω (w, deg) |
339.643363 |
| M (ma, deg) |
0.740845 |
Magnitude
Scatter + Global Linear
$$
M_a = (12.738 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
12.738 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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
Residuals (Piecewise)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| Start (UTC) |
End (UTC) |
a |
b |
| 2013-11-06 |
2014-03-08 |
+8.9180 |
-2.644 |
log10 r = log10(heliocentric distance / AU), Δ = geocentric distance (AU)
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
16:57:25.35 |
-05:37:44.4 |
HIP 82961 |
4.55 |
| 2026-06-01 12:00 |
16:57:19.86 |
-05:37:36.9 |
HIP 82961 |
3.81 |
| 2026-06-02 00:00 |
16:57:14.36 |
-05:37:29.6 |
HIP 82961 |
3.48 |
| 2026-06-02 12:00 |
16:57:08.86 |
-05:37:22.5 |
HIP 82961 |
3.66 |
| 2026-06-03 00:00 |
16:57:03.36 |
-05:37:15.6 |
HIP 82961 |
4.30 |
| 2026-06-03 12:00 |
16:56:57.85 |
-05:37:09.0 |
HIP 82961 |
5.22 |
| 2026-06-04 00:00 |
16:56:52.35 |
-05:37:02.5 |
HIP 82961 |
6.31 |
| 2026-06-04 12:00 |
16:56:46.84 |
-05:36:56.3 |
HIP 82961 |
7.50 |
| 2026-06-05 00:00 |
16:56:41.33 |
-05:36:50.3 |
HIP 82961 |
8.73 |
| 2026-06-05 12:00 |
16:56:35.82 |
-05:36:44.5 |
HIP 82961 |
10.00 |
| 2026-06-06 00:00 |
16:56:30.31 |
-05:36:38.9 |
HIP 82961 |
11.30 |
| 2026-06-06 12:00 |
16:56:24.79 |
-05:36:33.5 |
HIP 82961 |
12.61 |
| 2026-06-07 00:00 |
16:56:19.28 |
-05:36:28.4 |
HIP 82961 |
13.93 |
| 2026-06-07 12:00 |
16:56:13.77 |
-05:36:23.4 |
HIP 82961 |
15.26 |
| 2026-06-08 00:00 |
16:56:08.26 |
-05:36:18.7 |
HIP 82961 |
16.59 |
| 2026-06-08 12:00 |
16:56:02.76 |
-05:36:14.2 |
HIP 82961 |
17.93 |
| 2026-06-09 00:00 |
16:55:57.25 |
-05:36:09.9 |
HIP 82961 |
19.28 |
| 2026-06-09 12:00 |
16:55:51.75 |
-05:36:05.8 |
HIP 82744 |
18.32 |
| 2026-06-10 00:00 |
16:55:46.25 |
-05:36:02.0 |
HIP 82744 |
17.08 |
| 2026-06-10 12:00 |
16:55:40.76 |
-05:35:58.4 |
HIP 82744 |
15.85 |
| 2026-06-11 00:00 |
16:55:35.27 |
-05:35:55.0 |
HIP 82744 |
14.65 |
| 2026-06-11 12:00 |
16:55:29.78 |
-05:35:51.8 |
HIP 82744 |
13.48 |
| 2026-06-12 00:00 |
16:55:24.30 |
-05:35:48.8 |
HIP 82744 |
12.34 |
| 2026-06-12 12:00 |
16:55:18.82 |
-05:35:46.1 |
HIP 82744 |
11.26 |
| 2026-06-13 00:00 |
16:55:13.36 |
-05:35:43.6 |
HIP 82744 |
10.24 |
| 2026-06-13 12:00 |
16:55:07.89 |
-05:35:41.3 |
HIP 82744 |
9.31 |
| 2026-06-14 00:00 |
16:55:02.44 |
-05:35:39.3 |
HIP 82744 |
8.49 |
| 2026-06-14 12:00 |
16:54:56.99 |
-05:35:37.4 |
HIP 82744 |
7.82 |
| 2026-06-15 00:00 |
16:54:51.55 |
-05:35:35.8 |
HIP 82744 |
7.34 |
| 2026-06-15 12:00 |
16:54:46.12 |
-05:35:34.5 |
HIP 82744 |
7.09 |
| 2026-06-16 00:00 |
16:54:40.70 |
-05:35:33.3 |
HIP 82744 |
7.09 |
| 2026-06-16 12:00 |
16:54:35.29 |
-05:35:32.4 |
HIP 82744 |
7.33 |
| 2026-06-17 00:00 |
16:54:29.89 |
-05:35:31.7 |
HIP 82744 |
7.80 |
| 2026-06-17 12:00 |
16:54:24.50 |
-05:35:31.2 |
HIP 82744 |
8.45 |
| 2026-06-18 00:00 |
16:54:19.12 |
-05:35:31.0 |
HIP 82744 |
9.25 |
| 2026-06-18 12:00 |
16:54:13.75 |
-05:35:31.0 |
HIP 82744 |
10.15 |
| 2026-06-19 00:00 |
16:54:08.40 |
-05:35:31.2 |
HIP 82744 |
11.14 |
| 2026-06-19 12:00 |
16:54:03.06 |
-05:35:31.7 |
HIP 82744 |
12.19 |
| 2026-06-20 00:00 |
16:53:57.73 |
-05:35:32.4 |
HIP 82744 |
13.29 |
| 2026-06-20 12:00 |
16:53:52.41 |
-05:35:33.3 |
HIP 82744 |
14.42 |
| 2026-06-21 00:00 |
16:53:47.11 |
-05:35:34.4 |
HIP 82744 |
15.57 |
| 2026-06-21 12:00 |
16:53:41.82 |
-05:35:35.8 |
HIP 82744 |
16.74 |
| 2026-06-22 00:00 |
16:53:36.55 |
-05:35:37.4 |
HIP 82744 |
17.93 |