OObserbservationvation of cosmic of cosmic gamma-ray bursts andgamma-ray bursts and

solar flares in solar flares in the the ''RELEC'' experiment on ''RELEC'' experiment on

the the ''VERNOV'' satellite''VERNOV'' satellite

The The ''VERNOV'' satellite''VERNOV'' satellitewas launched was launched

on on the the 8 July 20148 July 2014..Data are available from Data are available from

25.07.14 to 10.12.14.25.07.14 to 10.12.14.

The orbital parametersThe orbital parameters:: ApogeeApogee – 819 – 819 kmkm PerigeePerigee – 621 – 621 kmkm InclinationInclination – 98,4° – 98,4° Orbital periodOrbital period – 99,2 – 99,2 minmin

The main scientific objectives The main scientific objectives of of ''''RELECRELEC'''' are: are:

observation of transient phenomena in the atmosphereobservation of transient phenomena in the atmosphere study of processes of magnetospheric electrons study of processes of magnetospheric electrons

acceleration and precipitationsacceleration and precipitations

observation of GRBs and solar flaresobservation of GRBs and solar flares

An additional objective isAn additional objective is::

1.1.DRGE-1,2 - X-ray and gamma-ray spectrometers,DRGE-1,2 - X-ray and gamma-ray spectrometers,2.2.DRGE-3 - 3-axis detector for electrons,DRGE-3 - 3-axis detector for electrons,3.3.DUV - detector of ultraviolet and red radiation, DUV - detector of ultraviolet and red radiation, 4.4.Telescope-T - fast optical imager, Telescope-T - fast optical imager, 5.5.NChA, RFA - low-frequency and radio-frequency analyzers NChA, RFA - low-frequency and radio-frequency analyzers of electromagnetic field and waves,of electromagnetic field and waves,6.6. BE – data and control unit. BE – data and control unit.

Instruments:Instruments:

DRGE-3DRGE-3A spectrometer of A spectrometer of

charged particles charged particles containing of containing of 3 orthogonally 3 orthogonally directed scintillator directed scintillator detectors.detectors.

Energy rangeEnergy range: : 0,1 - 15 0,1 - 15 MeVMeV ( (for electronsfor electrons))..Sensitive area of each Sensitive area of each

detectordetector ~3 ~3 cmcm22..

Statistics of GCN notices in period Statistics of GCN notices in period of of ''''VernovVernov'''' data (25.07 -10.12) data (25.07 -10.12)

All notices All notices 288288All eventsAll events 248248Impossible to analyzeImpossible to analyze(no data, radiation belts, etc)(no data, radiation belts, etc)

144144

High backgroundHigh background 4949EEvents with auspicious vents with auspicious conditions of conditions of observationobservation

5555

Events registered by Events registered by RELECRELEC

66 ((~11%)~11%)

Table of registered events.Table of registered events.DateDate TimeTime Missions which also Missions which also

registered these eventsregistered these events

1.1. 07.08.14 07.08.14 1111:59:29.97:59:29.9711:59:33.4811:59:33.48

KonusKonusFermiFermi

2.2. 24.09.1424.09.14 17:49:04.7217:49:04.72 KonusKonus

3.3. 11.10.1411.10.14 06:46:17.6606:46:17.6606:46:20.3606:46:20.36

KonusKonusFermiFermi

4.4. 16.10.1416.10.14 13:01:03.5713:01:03.5713:01:37.6613:01:37.66

KonusKonusINTEGRALINTEGRAL

5.5. 18.10.1418.10.14 02:49:12.2102:49:12.21 KonusKonus

6.6. 04.11.1404.11.14 00:03:19.5100:03:19.51 KonusKonus1,3,6 - GRBs, 2,4 – solar flares, 5 – GRB candidate.

GRBs

07.08.14 07.08.14 DRGE-3DRGE-3

1111..1010.14.14

04.1104.11.14 .14 DRGE-3DRGE-3

Seconds from 1.01.2014

Cou

nts

per 2

ms

Time, hh:mm:ss

Time, hh:mm:ss

DRGE 1-1DRGE 1-1

DRGE 1-2DRGE 1-2

DRGE 2-2 DRGE 2-2 SumSum

GRB candidate GRB candidate 18.10.201418.10.2014DRGE-3

Time, hh:mm:ss

Solar flare Solar flare 24.09.201424.09.2014

Time profileTime profile

Time, hh:mm:ss

N(>

E),

1/se

c

Integral spectra of energy releaseIntegral spectra of energy releaseN

(>E)

, 1/

sec

Solar flare 16.10.2014Solar flare 16.10.2014

Time from 13:00:00Time from 13:00:00

Cou

nt ra

te, 1

/sec

C

ount

rate

, 1/s

ec

DRGE-11, NaI DRGE-22, NaI

Solar flares Solar flares 24.0924.09 (green lines) (green lines) and and 16.1016.10 (blue lines). (blue lines).

Cou

nt ra

te, 1

/sec

C

ount

rate

, 1/s

ec

Seconds from 13:00:00 for flare at 16.10.14 andSeconds from 13:00:00 for flare at 16.10.14 andfrom 17:47:30 for flare at 24.10.14from 17:47:30 for flare at 24.10.14

Thank you for attention!Thank you for attention!