ASTROSAT CZTI

Data Quality Report

Orbit 47980

Creation date: 2024-08-12T03:06:51.537678
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/AS1A13_062T02_9000006384_47980cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47980cztM0_level2_quad_clean.evt
Size (bytes)462,093,12098,930,880
Size440.7 MB 94.3 MB
Events in quadrant A7,586,914590,820
Events in quadrant B2,964,623699,465
Events in quadrant C2,982,785664,931
Events in quadrant D3,085,136604,251

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265291
B0132371
C0134831
D0139002

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A624995215.234438%
B6250731.168000%
C6250641.024000%
D62491332.128341%

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 7388 6248 752 752 10.18% 12.04%
B 7390 6250 33 33 0.45% 0.53%
C 7390 6251 56 56 0.76% 0.90%
D 7389 6250 100 100 1.35% 1.60%

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 3755081 26910.86 669 655 139.5
A 0 31 1216866 8717.52 669 655 139.5
A 10 255 15557 106.81 669 655 139.5
B 5 32 139003 1032.0 687 667 134.0
B 0 197 35840 262.39 687 667 134.0
B 7 221 27790 202.34 687 667 134.0
C 14 254 308095 1935.2 674 677 158.9
C 12 2 22257 135.85 674 677 158.9
C 0 207 13310 79.53 674 677 158.9
D 2 249 365273 2168.27 671 649 168.2
D 11 224 44180 258.86 671 649 168.2
D 2 37 37270 217.77 671 649 168.2

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