ASTROSAT CZTI

Data Quality Report

Orbit 22049

Creation date: 2024-06-27T18:35:53.900121
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/AS1A07_167T01_9000003264_22049cztM0_level2.evt modeM0/AS1A07_167T01_9000003264_22049cztM0_level2_quad_clean.evt
Size (bytes)374,019,84073,486,080
Size356.7 MB 70.1 MB
Events in quadrant A2,368,845478,907
Events in quadrant B2,439,341488,357
Events in quadrant C2,361,394465,387
Events in quadrant D3,823,358448,119

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102141
B0103682
C0101221
D0147001

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4912611.241857%
B4911781.588271%
C4911651.323559%
D49112444.968438%

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 5212 4913 8 8 0.15% 0.16%
B 5211 4912 5 5 0.10% 0.10%
C 5211 4911 0 0 0.00% 0.00%
D 5211 4912 201 201 3.86% 4.09%

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 15 236 28474 227.44 603 589 122.6
A 5 16 10308 79.27 603 589 122.6
A 13 254 8415 63.83 603 589 122.6
B 3 64 32616 277.94 601 587 115.2
B 0 197 23145 195.76 601 587 115.2
B 12 111 13497 112.03 601 587 115.2
C 14 238 90799 658.55 580 581 137.0
C 5 4 6448 42.83 580 581 137.0
C 13 61 4030 25.18 580 581 137.0
D 1 52 1150518 8023.62 582 564 143.3
D 12 233 125348 870.66 582 564 143.3
D 13 249 49781 343.4 582 564 143.3

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