Observation information
- date-obs: 2018-01-18
- time-obs: 11:37:43.323600000
- date-end: 2018-01-18
- time-end: 17:13:22.339600000
- obs_id: A04_174T01_9000001850
- exposure: 12353.0974424
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001850_12485cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12485cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,461,726,720 | 261,328,320 |
| Size | 1.4 GB
| 249.2 MB
|
| Events in quadrant A | 13,530,762 | 1,669,240 |
| Events in quadrant B | 10,744,578 | 1,690,691 |
| Events in quadrant C | 8,472,010 | 1,701,411 |
| Events in quadrant D | 10,291,005 | 1,596,969 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 51932 | 4 |
| B | 0 | 43604 | 3 |
| C | 0 | 37274 | 3 |
| D | 0 | 42395 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 372 | 0 |
| B | 0 | 372 | 0 |
| C | 0 | 372 | 0 |
| D | 0 | 372 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18229 | 400 | 2.194306% |
| B | 18229 | 646 | 3.543804% |
| C | 18229 | 134 | 0.735092% |
| D | 18229 | 468 | 2.567338% |
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 | 20140 | 18231 | 3 | 3 | 0.01% | 0.02% |  |
| B | 20140 | 18231 | 278 | 278 | 1.38% | 1.52% |  |
| C | 20140 | 18231 | 2 | 2 | 0.01% | 0.01% |  |
| D | 20140 | 18231 | 238 | 238 | 1.18% | 1.31% |  |
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 | 0 | 23 | 3736917 | 8286.83 | 2209 | 2164 | 450.7 |
| A | 1 | 162 | 303826 | 669.34 | 2209 | 2164 | 450.7 |
| A | 0 | 226 | 276054 | 607.72 | 2209 | 2164 | 450.7 |
| B | 4 | 239 | 1263351 | 3020.7 | 2195 | 2143 | 417.5 |
| B | 10 | 245 | 384591 | 915.99 | 2195 | 2143 | 417.5 |
| B | 0 | 230 | 104433 | 244.99 | 2195 | 2143 | 417.5 |
| C | 15 | 208 | 40490 | 76.98 | 2157 | 2174 | 497.8 |
| C | 13 | 61 | 15773 | 27.32 | 2157 | 2174 | 497.8 |
| C | 8 | 128 | 10698 | 17.12 | 2157 | 2174 | 497.8 |
| D | 1 | 52 | 1140465 | 2200.27 | 2139 | 2081 | 517.4 |
| D | 8 | 195 | 248926 | 477.1 | 2139 | 2081 | 517.4 |
| D | 13 | 104 | 173940 | 332.17 | 2139 | 2081 | 517.4 |
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 |  |