ASTROSAT CZTI

Data Quality Report

Orbit 45314

Creation date: 2024-06-27T23:12:16.998482
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_047T01_9000006068_45314cztM0_level2.fits modeM0/AS1A13_047T01_9000006068_45314cztM0_level2_quad_clean.evt
Size (bytes)521,213,760114,880,320
Size497.1 MB 109.6 MB
Events in quadrant A5,717,450775,471
Events in quadrant B3,377,047820,994
Events in quadrant C4,578,703741,703
Events in quadrant D5,115,173685,797

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215542
B0141092
C0178992
D0196012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65201612.469325%
B6520671.027607%
C65203715.690184%
D65202473.788344%

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 7790 6520 64 64 0.82% 0.98%
B 7790 6520 19 19 0.24% 0.29%
C 7790 6520 358 358 4.60% 5.49%
D 7790 6520 218 218 2.80% 3.34%

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 2647567 16506.66 774 760 160.3
A 13 248 40598 248.45 774 760 160.3
A 0 243 19247 115.29 774 760 160.3
B 5 32 77947 503.95 786 764 153.2
B 3 112 64007 412.93 786 764 153.2
B 0 190 26706 169.38 786 764 153.2
C 14 254 1343324 7654.49 749 756 175.4
C 12 2 192051 1090.65 749 756 175.4
C 12 250 88529 500.43 749 756 175.4
D 1 52 1104230 5900.43 748 726 187.0
D 13 249 330258 1762.01 748 726 187.0
D 11 224 230435 1228.25 748 726 187.0

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