ASTROSAT CZTI

Data Quality Report

Orbit 43287

Creation date: 2024-06-27T22:50:11.160414
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/AS1A12_089T01_9000005864_43287cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43287cztM0_level2_quad_clean.evt
Size (bytes)312,442,56085,757,760
Size298.0 MB 81.8 MB
Events in quadrant A3,616,961559,181
Events in quadrant B2,324,597602,967
Events in quadrant C2,463,256573,514
Events in quadrant D2,778,126516,620

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137902
B0100253
C0100912
D0115272

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49082565.215974%
B4907110.224170%
C490760.122274%
D4907871.772977%

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 7030 4909 194 194 2.76% 3.95%
B 7029 4908 0 0 0.00% 0.00%
C 7029 4908 3 3 0.04% 0.06%
D 7029 4908 75 75 1.07% 1.53%

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 15 237 829993 7337.47 555 545 113.0
A 10 83 561949 4966.3 555 545 113.0
A 12 189 42785 373.66 555 545 113.0
B 0 186 26989 241.75 566 551 109.4
B 5 255 25992 232.63 566 551 109.4
B 0 190 18766 166.56 566 551 109.4
C 15 214 211976 1618.83 554 557 130.6
C 3 233 63192 479.6 554 557 130.6
C 14 254 21925 163.61 554 557 130.6
D 12 6 221337 1640.67 551 538 134.6
D 2 249 165948 1229.1 551 538 134.6
D 1 52 96516 713.17 551 538 134.6

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