ASTROSAT CZTI

Data Quality Report

Orbit 34047

Creation date: 2024-06-27T20:55:51.239881
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/AS1A06_003T04_9000004866_34047cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34047cztM0_level2_quad_clean.evt
Size (bytes)781,646,40072,354,240
Size745.4 MB 69.0 MB
Events in quadrant A5,598,616470,089
Events in quadrant B10,450,119363,959
Events in quadrant C3,187,030520,753
Events in quadrant D4,098,880483,369

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199713
B0344342
C0126202
D0156272

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A499899519.907963%
B4998382876.590636%
C49981032.060824%
D49982414.821929%

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 7121 4998 992 992 13.93% 19.85%
B 7120 4997 3558 3558 49.97% 71.20%
C 7121 4999 75 75 1.05% 1.50%
D 7121 4999 236 236 3.31% 4.72%

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 15 169 3221323 26688.88 611 600 120.7
A 10 83 18597 149.13 611 600 120.7
A 13 254 8277 63.62 611 600 120.7
B 5 31 4376813 50279.27 464 456 87.0
B 5 15 2557017 29371.92 464 456 87.0
B 5 172 708975 8140.06 464 456 87.0
C 0 10 277029 1969.78 615 622 140.3
C 15 214 237449 1687.71 615 622 140.3
C 0 207 114920 814.53 615 622 140.3
D 8 195 677799 4489.19 619 604 150.9
D 12 233 412021 2727.32 619 604 150.9
D 2 249 358103 2369.89 619 604 150.9

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