Observation information
- date-obs: 2020-10-01
- time-obs: 06:05:35.926300000
- date-end: 2020-10-01
- time-end: 11:43:08.922200000
- obs_id: T03_231T01_9000003910
- exposure: 11808.0241806
- sourceid: GRS 1915+105
- observer: jitheshthejus
- ra_pnt: 288.7981
- dec_pnt: 10.94577
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_231T01_9000003910_27091cztM0_level2.evt
| modeM0/AS1T03_231T01_9000003910_27091cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,474,424,640 | 237,553,920 |
| Size | 1.4 GB
| 226.5 MB
|
| Events in quadrant A | 9,681,096 | 1,524,676 |
| Events in quadrant B | 12,048,677 | 1,520,613 |
| Events in quadrant C | 8,766,268 | 1,484,521 |
| Events in quadrant D | 12,927,186 | 1,408,602 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 40212 | 0 |
| B | 0 | 47506 | 0 |
| C | 0 | 37337 | 0 |
| D | 0 | 50304 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18223 | 387 | 2.123690% |
| B | 18224 | 554 | 3.039947% |
| C | 18224 | 283 | 1.552897% |
| D | 18223 | 1008 | 5.531471% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 20253 | 18226 | 122 | 122 | 0.60% | 0.67% |  |
| B | 20254 | 18227 | 227 | 227 | 1.12% | 1.25% |  |
| C | 20254 | 18227 | 6 | 6 | 0.03% | 0.03% |  |
| D | 20253 | 18226 | 949 | 949 | 4.69% | 5.21% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 14 | 235 | 974478 | 2178.56 | 2223 | 2176 | 446.3 |
| A | 12 | 189 | 110887 | 243.58 | 2223 | 2176 | 446.3 |
| A | 13 | 254 | 29179 | 60.5 | 2223 | 2176 | 446.3 |
| B | 0 | 189 | 2740686 | 6512.87 | 2203 | 2145 | 420.5 |
| B | 3 | 112 | 445217 | 1053.73 | 2203 | 2145 | 420.5 |
| B | 10 | 245 | 108230 | 252.29 | 2203 | 2145 | 420.5 |
| C | 14 | 238 | 339703 | 670.42 | 2147 | 2163 | 503.5 |
| C | 15 | 208 | 40816 | 76.77 | 2147 | 2163 | 503.5 |
| C | 4 | 224 | 18329 | 32.11 | 2147 | 2163 | 503.5 |
| D | 1 | 52 | 3693260 | 7214.25 | 2138 | 2078 | 511.7 |
| D | 2 | 250 | 566258 | 1102.66 | 2138 | 2078 | 511.7 |
| D | 11 | 176 | 287808 | 558.45 | 2138 | 2078 | 511.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |