ASTROSAT CZTI

Data Quality Report

Orbit 09337

Creation date: 2024-06-27T15:44:39.837930
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/AS1G07_022T01_9000001322_09337cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09337cztM0_level2_quad_clean.evt
Size (bytes)486,714,24088,637,760
Size464.2 MB 84.5 MB
Events in quadrant A3,641,661574,697
Events in quadrant B3,069,681589,407
Events in quadrant C3,484,648572,919
Events in quadrant D4,126,201517,331

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015700799
B013723483
C015217550
D017328608

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01308
B01304
C01304
D01304

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6117430.702959%
B6170330.534846%
C61731252.024947%
D61754968.032389%

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 8898 6309 8 8 0.09% 0.13%
B 8891 6332 2 2 0.02% 0.03%
C 8899 6337 73 73 0.82% 1.15%
D 8899 6344 368 368 4.14% 5.80%

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 8 5 679089 4635.1 721 707 146.4
A 13 251 83846 568.05 721 707 146.4
A 5 16 33157 221.72 721 707 146.4
B 0 219 79228 561.34 737 719 139.9
B 0 214 59097 417.4 737 719 139.9
B 0 187 22774 157.69 737 719 139.9
C 4 254 735085 4558.99 699 702 161.1
C 9 68 9765 56.26 699 702 161.1
C 13 61 5263 28.31 699 702 161.1
D 1 52 1143446 6598.61 655 639 173.2
D 12 233 286196 1648.82 655 639 173.2
D 7 71 84506 484.25 655 639 173.2

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