ASTROSAT CZTI

Data Quality Report

Orbit 30242

Creation date: 2024-06-27T20:12:35.280380
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/AS1A10_007T01_9000004350_30242cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30242cztM0_level2_quad_clean.evt
Size (bytes)591,359,04093,049,920
Size564.0 MB 88.7 MB
Events in quadrant A4,047,218574,601
Events in quadrant B5,648,731584,310
Events in quadrant C3,779,101575,982
Events in quadrant D3,931,487566,296

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167012
B0224442
C0156692
D0161462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74142593.493391%
B74142723.668735%
C74142393.223631%
D74141662.239007%

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 7594 7415 32 32 0.42% 0.43%
B 7594 7414 0 0 0.00% 0.00%
C 7594 7415 0 0 0.00% 0.00%
D 7594 7416 9 9 0.12% 0.12%

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 13 438830 2357.6 919 897 185.8
A 14 239 37495 197.02 919 897 185.8
A 13 254 13421 67.42 919 897 185.8
B 6 159 2061384 11603.5 907 882 177.6
B 12 111 22217 120.15 907 882 177.6
B 11 111 20428 110.07 907 882 177.6
C 14 238 143654 670.68 893 897 212.9
C 3 233 141168 659.0 893 897 212.9
C 2 114 17172 76.46 893 897 212.9
D 8 195 420392 1914.47 902 882 219.1
D 2 250 36639 163.18 902 882 219.1
D 2 234 31809 141.14 902 882 219.1

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