ASTROSAT CZTI

Data Quality Report

Orbit 38913

Creation date: 2024-06-27T21:58:05.776122
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/AS1T05_064T01_9000005416_38913cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38913cztM0_level2_quad_clean.evt
Size (bytes)291,306,24084,697,920
Size277.8 MB 80.8 MB
Events in quadrant A2,657,132564,115
Events in quadrant B2,228,538582,016
Events in quadrant C2,338,690566,503
Events in quadrant D3,176,258508,247

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0410

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110483
B0100372
C099912
D0128462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4903200.407914%
B4903130.265144%
C490380.163165%
D49031483.018560%

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 6966 4904 13 13 0.19% 0.27%
B 6966 4904 6 6 0.09% 0.12%
C 6966 4904 3 3 0.04% 0.06%
D 6966 4904 146 146 2.10% 2.98%

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 10 83 384388 3507.78 534 522 109.4
A 12 16 140310 1277.38 534 522 109.4
A 12 194 25275 226.19 534 522 109.4
B 5 172 76081 739.79 537 522 102.1
B 0 230 15124 142.97 537 522 102.1
B 12 111 12814 120.35 537 522 102.1
C 15 214 215445 1743.71 531 536 123.2
C 12 249 31869 254.23 531 536 123.2
C 0 10 11359 87.81 531 536 123.2
D 12 235 272954 2189.68 517 502 124.4
D 2 250 199446 1598.9 517 502 124.4
D 10 118 170887 1369.37 517 502 124.4

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