ASTROSAT CZTI

Data Quality Report

Orbit 09700

Creation date: 2024-06-27T15:49:47.906886
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/AS1A03_084T01_9000001382_09700cztM0_level2.evt modeM0/AS1A03_084T01_9000001382_09700cztM0_level2_quad_clean.evt
Size (bytes)477,025,92083,738,880
Size454.9 MB 79.9 MB
Events in quadrant A3,563,053519,866
Events in quadrant B3,347,458528,235
Events in quadrant C3,342,431516,986
Events in quadrant D3,731,665496,695

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146193
B0141202
C0144542
D0153502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68021311.925904%
B68021191.749485%
C68021402.058218%
D68021121.646575%

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 7652 6803 0 0 0.00% 0.00%
B 7652 6803 0 0 0.00% 0.00%
C 7652 6803 25 25 0.33% 0.37%
D 7652 6803 26 26 0.34% 0.38%

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 1 162 149949 861.69 838 819 173.1
A 1 178 59501 339.07 838 819 173.1
A 1 161 55209 314.27 838 819 173.1
B 0 214 22419 134.77 837 818 160.3
B 10 245 20975 125.77 837 818 160.3
B 12 111 18166 108.24 837 818 160.3
C 14 234 177472 937.72 808 810 188.4
C 9 237 6498 30.19 808 810 188.4
C 13 61 6076 27.95 808 810 188.4
D 1 52 285638 1450.59 806 788 196.4
D 12 233 145183 735.33 806 788 196.4
D 2 152 51799 259.77 806 788 196.4

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