ASTROSAT CZTI

Data Quality Report

Orbit 05642

Creation date: 2024-06-27T14:57:29.688087
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_032T02_9000000730_05642cztM0_level2.evt modeM0/AS1G06_032T02_9000000730_05642cztM0_level2_quad_clean.evt
Size (bytes)480,314,88079,536,960
Size458.1 MB 75.9 MB
Events in quadrant A3,492,045488,462
Events in quadrant B3,648,386488,398
Events in quadrant C3,568,797488,483
Events in quadrant D3,374,783469,027

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147591
B0150220
C0147940
D0146130

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68162583.785211%
B68161632.391432%
C68161712.508803%
D68161462.142019%

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 8956 6816 57 57 0.64% 0.84%
B 8956 6817 4 4 0.04% 0.06%
C 8956 6817 34 34 0.38% 0.50%
D 8956 6816 18 18 0.20% 0.26%

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 14 111 211233 1215.65 850 832 173.1
A 12 194 8325 43.29 850 832 173.1
A 0 226 8272 42.99 850 832 173.1
B 15 204 155352 935.71 860 841 165.1
B 0 214 48789 290.37 860 841 165.1
B 15 54 37170 220.01 860 841 165.1
C 1 16 193105 994.86 828 832 193.3
C 12 4 134482 691.53 828 832 193.3
C 9 16 8446 39.4 828 832 193.3
D 2 152 84293 408.12 831 805 204.6
D 2 136 76301 369.05 831 805 204.6
D 12 233 23368 110.3 831 805 204.6

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