ASTROSAT CZTI

Data Quality Report

Orbit 19369

Creation date: 2024-06-27T18:02:03.104216
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/AS1A05_104T05_9000002860_19369cztM0_level2.evt modeM0/AS1A05_104T05_9000002860_19369cztM0_level2_quad_clean.evt
Size (bytes)257,109,12042,825,600
Size245.2 MB 40.8 MB
Events in quadrant A1,215,366288,226
Events in quadrant B1,241,137293,926
Events in quadrant C1,275,513283,946
Events in quadrant D3,884,998252,529

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051210
B051680
C052190
D0132630

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A247120.080939%
B247240.161812%
C2472130.525890%
D247251820.954693%

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 2471 2471 0 0 0.00% 0.00%
B 2472 2472 0 0 0.00% 0.00%
C 2472 2472 0 0 0.00% 0.00%
D 2472 2472 374 374 15.13% 15.13%

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 0 226 2664 36.67 314 309 64.2
A 13 254 2523 34.47 314 309 64.2
A 4 2 2467 33.6 314 309 64.2
B 12 111 7029 109.55 316 307 61.4
B 11 111 6211 96.22 316 307 61.4
B 14 111 5644 86.98 316 307 61.4
C 14 238 48533 650.0 313 315 74.2
C 3 233 5705 72.66 313 315 74.2
C 13 61 2142 24.63 313 315 74.2
D 10 66 2468760 33375.16 299 290 74.0
D 1 52 142927 1928.54 299 290 74.0
D 11 176 102682 1384.4 299 290 74.0

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