ASTROSAT CZTI

Data Quality Report

Orbit 47549

Creation date: 2024-07-14T00:17:39.450695
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_002T01_9000006334_47549cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47549cztM0_level2_quad_clean.evt
Size (bytes)464,633,280105,563,520
Size443.1 MB 100.7 MB
Events in quadrant A6,901,524698,177
Events in quadrant B3,064,356734,588
Events in quadrant C2,747,691704,801
Events in quadrant D4,000,503622,952

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248761
B0133291
C0128101
D0163251

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62483445.505762%
B62491001.600256%
C6249360.576092%
D62493615.776924%

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 7383 6248 92 92 1.25% 1.47%
B 7384 6250 11 11 0.15% 0.18%
C 7384 6250 5 5 0.07% 0.08%
D 7384 6250 306 306 4.14% 4.90%

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 3738470 25905.47 699 685 144.3
A 9 191 420170 2907.32 699 685 144.3
A 13 248 28611 193.55 699 685 144.3
B 0 200 94709 689.61 707 684 136.3
B 0 190 84444 614.32 707 684 136.3
B 5 172 38046 274.02 707 684 136.3
C 14 254 37384 227.08 691 695 161.6
C 3 233 9001 51.41 691 695 161.6
C 1 3 7507 42.16 691 695 161.6
D 12 233 927991 5570.16 674 650 166.5
D 12 2 122233 730.3 674 650 166.5
D 11 192 70285 418.27 674 650 166.5

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