ASTROSAT CZTI

Data Quality Report

Orbit 07720

Creation date: 2024-06-27T15:23:07.438991
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/AS1G06_064T01_9000001066_07720cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07720cztM0_level2_quad_clean.evt
Size (bytes)519,779,52079,557,120
Size495.7 MB 75.9 MB
Events in quadrant A3,768,030478,616
Events in quadrant B4,101,420479,799
Events in quadrant C3,542,828465,760
Events in quadrant D3,803,831447,062

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163873
B0172792
C0160332
D0167522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77272062.665976%
B77273404.400155%
C77271161.501229%
D77271361.760062%

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 7992 7727 6 6 0.08% 0.08%
B 7992 7727 87 87 1.09% 1.13%
C 7992 7728 0 0 0.00% 0.00%
D 7992 7727 27 27 0.34% 0.35%

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 15 234 153690 788.96 933 911 193.6
A 0 226 9010 41.82 933 911 193.6
A 3 1 8351 38.42 933 911 193.6
B 4 239 294712 1625.05 929 904 180.8
B 0 229 83792 458.45 929 904 180.8
B 0 219 45458 246.43 929 904 180.8
C 13 61 7187 29.54 905 907 212.6
C 8 128 3681 13.04 905 907 212.6
C 8 222 3585 12.59 905 907 212.6
D 13 104 147657 655.16 908 877 224.0
D 2 136 94682 418.71 908 877 224.0
D 2 152 45819 200.6 908 877 224.0

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