ASTROSAT CZTI

Data Quality Report

Orbit 38317

Creation date: 2024-06-27T21:51:11.819702
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/AS1C07_001T12_9000005372_38317cztM0_level2.fits modeM0/AS1C07_001T12_9000005372_38317cztM0_level2_quad_clean.evt
Size (bytes)513,129,60079,865,280
Size489.4 MB 76.2 MB
Events in quadrant A2,715,290628,361
Events in quadrant B2,764,026621,651
Events in quadrant C2,529,191626,818
Events in quadrant D10,603,195196,510

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110903
B0114422
C0103542
D0348422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4915240.488301%
B49151733.519837%
C4915110.223805%
D4915327266.571719%

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 7038 4916 17 17 0.24% 0.35%
B 7038 4916 133 133 1.89% 2.71%
C 7038 4916 6 6 0.09% 0.12%
D 7038 4916 3159 3159 44.88% 64.26%

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 10 83 388107 3409.75 571 561 113.7
A 13 248 40630 352.54 571 561 113.7
A 10 248 38728 335.81 571 561 113.7
B 5 184 407218 3849.67 562 547 105.6
B 0 183 40277 376.1 562 547 105.6
B 0 229 29592 274.95 562 547 105.6
C 15 214 209835 1579.11 575 580 132.5
C 0 10 24726 182.21 575 580 132.5
C 15 159 12225 87.88 575 580 132.5
D 10 203 6134232 56671.16 443 431 108.2
D 12 235 1208334 11160.01 443 431 108.2
D 2 16 838247 7740.72 443 431 108.2

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