Observation information
- date-obs: 2015-11-08
- time-obs: 02:25:54.242900000
- date-end: 2015-11-08
- time-end: 04:39:59.234700000
- obs_id: P01_126T01_9000000084
- exposure: 3917.00706871
- sourceid: Crab-SSM1-P1
- observer: ramadevi
- ra_pnt: 80.3923
- dec_pnt: -68.1274
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_126T01_9000000084_00608cztM0_level2.evt
| modeM0/AS1P01_126T01_9000000084_00608cztM0_level2_quad_clean.evt
|
| Size (bytes) | 833,374,080 | 65,096,640 |
| Size | 794.8 MB
| 62.1 MB
|
| Events in quadrant A | 6,608,755 | 399,986 |
| Events in quadrant B | 6,363,426 | 415,552 |
| Events in quadrant C | 5,752,805 | 406,539 |
| Events in quadrant D | 6,174,944 | 391,255 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28 | 0 |
| B | 0 | 28 | 0 |
| C | 0 | 28 | 0 |
| D | 0 | 29 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23258 | 3 |
| B | 0 | 22513 | 2 |
| C | 0 | 20705 | 2 |
| D | 0 | 21982 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 106 | 0 |
| B | 0 | 106 | 0 |
| C | 0 | 106 | 0 |
| D | 0 | 106 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5095 | 26 | 0.510304% |
| B | 5095 | 16 | 0.314033% |
| C | 5095 | 8 | 0.157017% |
| D | 5095 | 25 | 0.490677% |
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 | 7251 | 5096 | 248 | 248 | 3.42% | 4.87% |  |
| B | 7251 | 5096 | 166 | 166 | 2.29% | 3.26% |  |
| C | 7251 | 5096 | 55 | 55 | 0.76% | 1.08% |  |
| D | 7251 | 5096 | 175 | 175 | 2.41% | 3.43% |  |
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 | 15 | 171 | 475659 | 1378.37 | 1552 | 1533 | 344.0 |
| A | 13 | 160 | 36660 | 102.12 | 1552 | 1533 | 344.0 |
| A | 0 | 238 | 33227 | 92.14 | 1552 | 1533 | 344.0 |
| B | 7 | 221 | 279616 | 777.69 | 1543 | 1549 | 357.6 |
| B | 4 | 250 | 79770 | 218.77 | 1543 | 1549 | 357.6 |
| B | 0 | 220 | 24266 | 63.53 | 1543 | 1549 | 357.6 |
| C | 10 | 19 | 41181 | 99.22 | 1443 | 1496 | 400.0 |
| C | 1 | 1 | 15143 | 34.12 | 1443 | 1496 | 400.0 |
| C | 7 | 221 | 13263 | 29.42 | 1443 | 1496 | 400.0 |
| D | 1 | 4 | 264571 | 609.02 | 1393 | 1447 | 432.0 |
| D | 7 | 143 | 175202 | 402.17 | 1393 | 1447 | 432.0 |
| D | 12 | 237 | 107614 | 245.73 | 1393 | 1447 | 432.0 |
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 |  |