Observation information
- date-obs: 2018-01-20
- time-obs: 10:26:06.441300000
- date-end: 2018-01-20
- time-end: 16:14:35.456400000
- obs_id: T01_218T01_9000001852
- exposure: 11354.4526729
- sourceid: Mrk 421
- observer: subirbhattacharyya
- ra_pnt: 166.1138
- dec_pnt: 38.20883
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T01_218T01_9000001852_12514cztM0_level2.evt
| modeM0/AS1T01_218T01_9000001852_12514cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,368,316,800 | 221,955,840 |
| Size | 1.3 GB
| 211.7 MB
|
| Events in quadrant A | 9,012,217 | 1,379,657 |
| Events in quadrant B | 9,657,371 | 1,392,919 |
| Events in quadrant C | 8,472,224 | 1,373,614 |
| Events in quadrant D | 13,037,074 | 1,290,291 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 38885 | 5 |
| B | 0 | 40487 | 4 |
| C | 0 | 38129 | 4 |
| D | 0 | 51214 | 4 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 380 | 0 |
| B | 0 | 380 | 0 |
| C | 0 | 380 | 0 |
| D | 0 | 380 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18659 | 301 | 1.613163% |
| B | 18659 | 430 | 2.304518% |
| C | 18659 | 254 | 1.361273% |
| D | 18659 | 1105 | 5.922075% |
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 | 20910 | 18662 | 0 | 0 | 0.00% | 0.00% |  |
| B | 20910 | 18662 | 52 | 52 | 0.25% | 0.28% |  |
| C | 20910 | 18663 | 0 | 0 | 0.00% | 0.00% |  |
| D | 20910 | 18663 | 706 | 706 | 3.38% | 3.78% |  |
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 | 12 | 189 | 193874 | 421.17 | 2229 | 2174 | 455.2 |
| A | 1 | 162 | 83626 | 178.95 | 2229 | 2174 | 455.2 |
| A | 1 | 178 | 50475 | 106.12 | 2229 | 2174 | 455.2 |
| B | 4 | 239 | 566156 | 1322.68 | 2228 | 2171 | 426.4 |
| B | 11 | 51 | 158695 | 367.09 | 2228 | 2171 | 426.4 |
| B | 0 | 218 | 74552 | 169.75 | 2228 | 2171 | 426.4 |
| C | 13 | 61 | 16015 | 27.61 | 2164 | 2169 | 501.4 |
| C | 14 | 234 | 14304 | 24.2 | 2164 | 2169 | 501.4 |
| C | 8 | 128 | 11222 | 18.05 | 2164 | 2169 | 501.4 |
| D | 1 | 52 | 3344233 | 6581.78 | 2110 | 2051 | 507.8 |
| D | 1 | 255 | 1085256 | 2133.16 | 2110 | 2051 | 507.8 |
| D | 8 | 195 | 137954 | 267.63 | 2110 | 2051 | 507.8 |
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 |  |