ASTROSAT CZTI

Data Quality Report

Orbit 30614

Creation date: 2024-06-27T20:17:42.033210
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/AS1A10_021T09_9000004410_30614cztM0_level2.evt modeM0/AS1A10_021T09_9000004410_30614cztM0_level2_quad_clean.evt
Size (bytes)374,230,08049,331,520
Size356.9 MB 47.0 MB
Events in quadrant A2,264,288323,695
Events in quadrant B3,024,846324,490
Events in quadrant C2,737,478293,204
Events in quadrant D3,060,489295,385

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089091
B0113211
C0106851
D0117971

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3625912.510345%
B3625360.993103%
C362578921.765517%
D36251012.786207%

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 3625 3625 54 54 1.49% 1.49%
B 3625 3625 1 1 0.03% 0.03%
C 3625 3625 82 82 2.26% 2.26%
D 3625 3625 121 121 3.34% 3.34%

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 0 13 246042 2380.72 520 513 103.1
A 8 192 11658 108.07 520 513 103.1
A 13 254 6321 56.32 520 513 103.1
B 6 159 976850 10181.0 513 504 95.9
B 0 190 13889 139.57 513 504 95.9
B 12 111 10920 108.61 513 504 95.9
C 15 208 339476 3229.06 461 466 105.0
C 14 238 222932 2118.98 461 466 105.0
C 14 254 198235 1883.74 461 466 105.0
D 8 195 840721 7221.44 499 489 116.4
D 12 218 158532 1358.31 499 489 116.4
D 5 222 52967 451.03 499 489 116.4

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