ASTROSAT CZTI

Data Quality Report

Orbit 52114

Creation date: 2025-05-17T16:01:31.007283
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/AS1C09_011T07_9000006470_52114cztM0_level2.fits modeM0/AS1C09_011T07_9000006470_52114cztM0_level2_quad_clean.evt
Size (bytes)1,418,037,120137,338,560
Size1.3 GB 131.0 MB
Events in quadrant A5,974,9321,227,279
Events in quadrant B9,408,6401,071,413
Events in quadrant C12,252,988960,660
Events in quadrant D24,059,890185,433

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02100
B02100
C02100
D02100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244722
B0350192
C0437062
D0785809

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A102972562.486161%
B10298144013.983298%
C10298222021.557584%
D10297861383.645722%

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 11417 10299 75 75 0.66% 0.73%
B 11418 10300 936 936 8.20% 9.09%
C 11418 10300 1681 1681 14.72% 16.32%
D 11418 10299 7741 7741 67.80% 75.16%

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 4 3 448861 1418.59 1204 1179 315.6
A 8 43 142085 446.5 1204 1179 315.6
A 5 240 101644 318.35 1204 1179 315.6
B 10 44 2171354 9269.62 1083 1049 234.1
B 8 3 793417 3384.29 1083 1049 234.1
B 0 170 735926 3138.74 1083 1049 234.1
C 15 224 6159401 20056.75 1059 1048 307.0
C 2 239 1113919 3624.44 1059 1048 307.0
C 13 3 283080 918.53 1059 1048 307.0
D 6 42 12157760 68427.51 569 541 177.7
D 15 94 6359523 35791.84 569 541 177.7
D 12 17 1022658 5753.04 569 541 177.7

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