ASTROSAT CZTI

Data Quality Report

Orbit 12070

Creation date: 2024-06-27T16:22:06.727411
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/AS1A04_176T01_9000001786_12070cztM0_level2.evt modeM0/AS1A04_176T01_9000001786_12070cztM0_level2_quad_clean.evt
Size (bytes)200,327,04028,843,200
Size191.0 MB 27.5 MB
Events in quadrant A1,377,873179,717
Events in quadrant B1,809,427173,714
Events in quadrant C1,248,259171,923
Events in quadrant D1,459,911168,349

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056540
B070740
C052010
D058370

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2494110.441059%
B2494602.405774%
C249410.040096%
D2494271.082598%

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 2495 2495 0 0 0.00% 0.00%
B 2495 2495 36 36 1.44% 1.44%
C 2495 2495 0 0 0.00% 0.00%
D 2495 2495 19 19 0.76% 0.76%

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 13 251 42970 630.07 328 322 67.7
A 1 162 20601 299.6 328 322 67.7
A 14 63 14739 212.99 328 322 67.7
B 4 206 261682 4275.98 320 313 61.1
B 4 239 229913 3756.24 320 313 61.1
B 15 204 54042 879.0 320 313 61.1
C 0 207 10220 134.47 317 320 73.6
C 13 61 2350 27.57 317 320 73.6
C 14 234 1305 13.38 317 320 73.6
D 1 52 106589 1401.06 317 309 75.9
D 10 199 73693 967.4 317 309 75.9
D 8 195 31241 407.77 317 309 75.9

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