ASTROSAT CZTI

Data Quality Report

Orbit 03053

Creation date: 2024-06-27T14:24:01.168444
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/AS1G05_238T03_9000000424_03053cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03053cztM0_level2_quad_clean.evt
Size (bytes)380,044,80054,829,440
Size362.4 MB 52.3 MB
Events in quadrant A2,367,894337,295
Events in quadrant B2,655,179336,481
Events in quadrant C2,367,584326,375
Events in quadrant D3,774,219304,419

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102343
B0111712
C0103712
D0146282

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A507260.118297%
B507290.177445%
C507290.177445%
D50722915.737382%

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 7196 5073 1 1 0.01% 0.02%
B 7196 5073 5 5 0.07% 0.10%
C 7196 5073 4 4 0.06% 0.08%
D 7196 5073 295 295 4.10% 5.82%

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 14 249 11137 85.91 607 595 122.7
A 0 226 6721 49.92 607 595 122.7
A 12 194 6412 47.4 607 595 122.7
B 0 230 180180 1553.62 612 601 115.6
B 15 204 32089 272.42 612 601 115.6
B 0 219 29544 250.4 612 601 115.6
C 1 192 42887 316.3 578 583 133.7
C 6 80 24431 178.3 578 583 133.7
C 4 207 10114 71.26 578 583 133.7
D 13 114 1279261 9296.24 572 556 137.6
D 2 232 110925 802.39 572 556 137.6
D 2 152 70826 510.87 572 556 137.6

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