ASTROSAT CZTI

Data Quality Report

Orbit 10585

Creation date: 2024-06-27T16:01:08.327909
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/AS1T01_191T01_9000001536_10585cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10585cztM0_level2_quad_clean.evt
Size (bytes)541,748,160104,362,560
Size516.7 MB 99.5 MB
Events in quadrant A3,310,604682,328
Events in quadrant B4,312,839672,405
Events in quadrant C3,235,150687,952
Events in quadrant D5,080,872637,993

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142651
B0171910
C0143240
D0199070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68882203.193961%
B68884937.157375%
C68881572.279326%
D68882233.237515%

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 6888 6888 0 0 0.00% 0.00%
B 6888 6888 195 195 2.83% 2.83%
C 6888 6888 8 8 0.12% 0.12%
D 6888 6888 23 23 0.33% 0.33%

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 13 251 73391 417.34 836 818 173.9
A 1 162 10800 57.4 836 818 173.9
A 0 226 7603 39.02 836 818 173.9
B 4 239 908323 5737.67 822 801 158.2
B 0 219 114751 720.43 822 801 158.2
B 11 51 48467 301.36 822 801 158.2
C 14 234 47815 244.1 817 822 192.5
C 13 61 6026 27.03 817 822 192.5
C 4 175 3744 15.18 817 822 192.5
D 2 16 1174760 6031.66 803 781 194.6
D 8 195 508332 2607.69 803 781 194.6
D 1 52 128287 655.1 803 781 194.6

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