ASTROSAT CZTI

Data Quality Report

Orbit 09658

Creation date: 2024-06-27T15:49:00.032141
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/AS1A03_077T01_9000001372_09658cztM0_level2.evt modeM0/AS1A03_077T01_9000001372_09658cztM0_level2_quad_clean.evt
Size (bytes)228,435,84040,207,680
Size217.9 MB 38.3 MB
Events in quadrant A1,624,027255,395
Events in quadrant B1,731,846253,218
Events in quadrant C1,593,565255,030
Events in quadrant D1,740,118217,491

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D031

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014478
B014375
C014270
D014372

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147327707
B0153098088
C0146767679
D01753310348

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3360702.083333%
B3355822.444113%
C3368210.623515%
D3102421.353965%

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 7478 4530 0 0 0.00% 0.00%
B 7460 4511 3 3 0.04% 0.07%
C 7451 4506 0 0 0.00% 0.00%
D 7466 4151 1 1 0.01% 0.02%

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 1 162 5847 61.95 418 409 87.8
A 0 226 3894 39.7 418 409 87.8
A 12 194 3629 36.68 418 409 87.8
B 0 214 41197 494.87 417 408 82.4
B 0 85 19260 228.72 417 408 82.4
B 0 219 14021 165.16 417 408 82.4
C 13 61 3078 27.76 408 409 96.2
C 14 234 1666 13.07 408 409 96.2
C 3 202 1001 6.16 408 409 96.2
D 1 52 117651 1273.4 373 363 92.1
D 8 195 95904 1037.29 373 363 92.1
D 7 71 51811 558.57 373 363 92.1

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