ASTROSAT CZTI

Data Quality Report

Orbit 44591

Creation date: 2024-06-27T23:04:15.956919
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_009T03_9000006006_44591cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44591cztM0_level2_quad_clean.evt
Size (bytes)450,167,040105,073,920
Size429.3 MB 100.2 MB
Events in quadrant A4,618,058713,474
Events in quadrant B3,419,098732,763
Events in quadrant C3,729,845688,844
Events in quadrant D4,423,721621,623

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189133
B0139351
C0150501
D0170551

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60861712.809727%
B60872704.435683%
C60872824.632824%
D60874116.752095%

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 7237 6087 10 10 0.14% 0.16%
B 7238 6088 105 105 1.45% 1.72%
C 7238 6088 186 186 2.57% 3.06%
D 7238 6088 326 326 4.50% 5.35%

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 1681550 10870.3 744 730 154.6
A 13 248 30535 192.76 744 730 154.6
A 4 0 20940 130.7 744 730 154.6
B 5 172 392724 2668.21 740 718 146.9
B 0 155 49588 332.64 740 718 146.9
B 0 186 20142 132.21 740 718 146.9
C 12 2 710141 4176.11 722 726 169.9
C 14 254 171576 1005.74 722 726 169.9
C 12 249 20023 113.6 722 726 169.9
D 13 249 839200 4783.42 708 691 175.3
D 2 249 344542 1961.56 708 691 175.3
D 1 52 270151 1537.18 708 691 175.3

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