ASTROSAT CZTI

Data Quality Report

Orbit 05510

Creation date: 2024-06-27T14:56:05.611469
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/AS1A02_162T01_9000000704_05510cztM0_level2.evt modeM0/AS1A02_162T01_9000000704_05510cztM0_level2_quad_clean.evt
Size (bytes)2,523,945,600333,861,120
Size2.4 GB 318.4 MB
Events in quadrant A13,043,7542,097,024
Events in quadrant B32,634,7911,890,061
Events in quadrant C13,945,3022,113,683
Events in quadrant D14,875,5952,031,009

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0591636
B011688418
C0611395
D0646105

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05860
B05860
C05860
D05860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A287694501.564184%
B28767558719.421559%
C287694351.512044%
D287696112.123814%

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 32124 28774 47 47 0.15% 0.16%
B 32124 28774 4551 4551 14.17% 15.82%
C 32124 28774 116 116 0.36% 0.40%
D 32124 28774 248 248 0.77% 0.86%

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 50 202765 293.68 3317 3243 679.4
A 12 194 33135 44.0 3317 3243 679.4
A 0 226 32589 43.2 3317 3243 679.4
B 15 255 17530657 28908.24 3176 3099 606.3
B 15 204 2063070 3397.51 3176 3099 606.3
B 4 48 267659 436.34 3176 3099 606.3
C 9 247 790190 1063.35 3211 3223 740.1
C 1 16 550134 738.99 3211 3223 740.1
C 8 128 27614 32.96 3211 3223 740.1
D 2 152 696332 883.23 3222 3124 784.9
D 12 233 679370 861.62 3222 3124 784.9
D 2 136 475663 602.07 3222 3124 784.9

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