ASTROSAT CZTI

Data Quality Report

Orbit 46730

Creation date: 2024-06-27T23:26:56.024128
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_092T09_9000006258_46730cztM0_level2.fits modeM0/AS1A13_092T09_9000006258_46730cztM0_level2_quad_clean.evt
Size (bytes)515,540,160100,166,400
Size491.7 MB 95.5 MB
Events in quadrant A6,468,534665,747
Events in quadrant B3,596,340686,486
Events in quadrant C2,776,407665,229
Events in quadrant D5,740,494563,564

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237908
B0149482
C0132536
D02145617

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64732153.321489%
B6476851.312539%
C6473310.478912%
D647067710.463679%

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 7276 6476 48 48 0.66% 0.74%
B 7277 6478 31 31 0.43% 0.48%
C 7277 6477 7 7 0.10% 0.11%
D 7277 6476 540 540 7.42% 8.34%

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 3449300 23400.72 696 682 147.4
A 9 191 103845 700.02 696 682 147.4
A 15 235 81857 550.82 696 682 147.4
B 4 171 205339 1475.64 698 678 138.7
B 3 112 200713 1442.28 698 678 138.7
B 15 201 173406 1245.4 698 678 138.7
C 14 254 39960 238.04 691 691 165.0
C 3 233 22522 132.33 691 691 165.0
C 0 207 10223 57.78 691 691 165.0
D 1 52 2239831 13302.64 664 643 168.3
D 13 249 232620 1378.14 664 643 168.3
D 5 171 202889 1201.51 664 643 168.3

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