ASTROSAT CZTI

Data Quality Report

Orbit 27583

Creation date: 2024-06-27T19:41:55.826079
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/AS1T03_259T01_9000003972_27583cztM0_level2.evt modeM0/AS1T03_259T01_9000003972_27583cztM0_level2_quad_clean.evt
Size (bytes)182,926,08033,212,160
Size174.5 MB 31.7 MB
Events in quadrant A1,298,915207,384
Events in quadrant B1,374,552210,730
Events in quadrant C1,297,850198,929
Events in quadrant D1,383,229195,403

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055440
B057560
C055560
D058060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2691401.486436%
B2692461.708767%
C2692491.820208%
D2692150.557207%

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 2691 2691 0 0 0.00% 0.00%
B 2692 2692 2 2 0.07% 0.07%
C 2692 2692 0 0 0.00% 0.00%
D 2692 2692 3 3 0.11% 0.11%

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 15 174 10214 142.99 334 326 69.2
A 13 254 4854 65.48 334 326 69.2
A 3 137 3297 42.96 334 326 69.2
B 15 32 56061 855.09 327 319 65.2
B 4 52 18648 281.17 327 319 65.2
B 12 111 8018 118.1 327 319 65.2
C 14 238 50509 667.53 316 316 75.2
C 2 16 10662 137.59 316 316 75.2
C 3 233 2919 34.62 316 316 75.2
D 1 52 140331 1819.6 320 309 77.0
D 2 250 17837 227.78 320 309 77.0
D 2 234 10715 135.23 320 309 77.0

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