ASTROSAT CZTI

Data Quality Report

Orbit 31443

Creation date: 2024-06-27T20:28:34.153586
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C06_005T01_9000004580_31443cztM0_level2.evt modeM0/AS1C06_005T01_9000004580_31443cztM0_level2_quad_clean.evt
Size (bytes)2,523,168,000386,930,880
Size2.3 GB 369.0 MB
Events in quadrant A9,974,4652,935,656
Events in quadrant B37,854,5901,625,334
Events in quadrant C12,119,4702,908,583
Events in quadrant D15,085,7772,830,793

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0421903
B01269313
C0485324
D0584083

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04140
B04140
C04140
D04140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A205502211.075426%
B205511197058.245341%
C205518584.174979%
D205516773.294244%

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 25889 20554 0 0 0.00% 0.00%
B 25890 20554 11284 11284 43.58% 54.90%
C 25890 20553 131 131 0.51% 0.64%
D 25890 20554 429 429 1.66% 2.09%

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 13 254 38773 71.8 2580 2528 504.8
A 3 137 24660 43.84 2580 2528 504.8
A 0 226 21774 38.12 2580 2528 504.8
B 12 1 28001890 98273.79 1544 1504 284.9
B 6 159 3438336 12062.35 1544 1504 284.9
B 4 80 194168 676.2 1544 1504 284.9
C 3 233 1142426 1997.82 2502 2520 570.6
C 14 238 488063 850.97 2502 2520 570.6
C 0 10 435660 759.13 2502 2520 570.6
D 8 195 2066858 3508.85 2530 2471 588.3
D 12 218 1562433 2651.48 2530 2471 588.3
D 1 52 1176808 1996.03 2530 2471 588.3

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