ASTROSAT CZTI

Data Quality Report

Orbit 42024

Creation date: 2024-06-27T22:35:51.637037
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/AS1A12_006T12_9000005734_42024cztM0_level2.fits modeM0/AS1A12_006T12_9000005734_42024cztM0_level2_quad_clean.evt
Size (bytes)328,029,12087,603,840
Size312.8 MB 83.5 MB
Events in quadrant A3,290,571600,103
Events in quadrant B2,845,915608,153
Events in quadrant C2,406,073573,476
Events in quadrant D3,210,000519,898

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128202
B0116302
C0100842
D0126502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0390
C0390
D0390

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5008681.357827%
B50081332.655751%
C500730.059916%
D50071182.356701%

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 7010 5009 62 62 0.88% 1.24%
B 7010 5009 88 88 1.26% 1.76%
C 7009 5008 0 0 0.00% 0.00%
D 7009 5008 104 104 1.48% 2.08%

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 15 223 534247 4453.2 579 567 119.8
A 10 83 502525 4188.5 579 567 119.8
A 12 189 9216 72.17 579 567 119.8
B 5 255 328110 2949.44 572 556 111.1
B 4 171 187692 1685.06 572 556 111.1
B 0 155 33142 293.42 572 556 111.1
C 15 214 210518 1609.94 560 564 130.4
C 8 79 5455 37.5 560 564 130.4
C 9 54 4369 29.18 560 564 130.4
D 2 249 405328 2949.8 550 533 137.2
D 1 52 363772 2646.97 550 533 137.2
D 12 6 130773 949.08 550 533 137.2

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