ASTROSAT CZTI

Data Quality Report

Orbit 47185

Creation date: 2024-06-27T23:32:34.422837
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/AS1A13_037T01_9000006300_47185cztM0_level2.fits modeM0/AS1A13_037T01_9000006300_47185cztM0_level2_quad_clean.evt
Size (bytes)312,531,84081,829,440
Size298.1 MB 78.0 MB
Events in quadrant A4,432,134544,636
Events in quadrant B2,502,931571,250
Events in quadrant C2,156,588532,665
Events in quadrant D2,099,458488,918

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033
B033
C011
D022

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01065
B011010
C011011
D01089

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185702410
B0121951396
C0110671053
D0111591098

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4785120.250784%
B4841280.578393%
C4868120.246508%
D4875110.225641%

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 7691 4956 0 0 0.00% 0.00%
B 7692 4978 10 10 0.13% 0.20%
C 7692 4998 11 11 0.14% 0.22%
D 7692 5007 9 9 0.12% 0.18%

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 2405330 22055.1 523 514 109.0
A 13 254 9239 80.02 523 514 109.0
A 3 137 5699 47.55 523 514 109.0
B 15 201 264724 2533.92 530 514 104.3
B 5 172 31033 292.69 530 514 104.3
B 4 21 29191 275.02 530 514 104.3
C 14 254 124465 1025.12 513 515 120.9
C 8 222 25839 209.44 513 515 120.9
C 13 61 3571 25.27 513 515 120.9
D 1 47 45841 352.48 512 495 128.6
D 5 171 39835 305.8 512 495 128.6
D 11 192 21200 160.94 512 495 128.6

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