ASTROSAT CZTI

Data Quality Report

Orbit 22799

Creation date: 2024-06-27T18:45:56.349561
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/AS1A07_054T01_9000003370_22799cztM0_level2.evt modeM0/AS1A07_054T01_9000003370_22799cztM0_level2_quad_clean.evt
Size (bytes)146,877,12036,506,880
Size140.1 MB 34.8 MB
Events in quadrant A889,368255,135
Events in quadrant B904,248258,992
Events in quadrant C893,648242,835
Events in quadrant D1,644,599225,019

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035451
B036121
C036151
D060802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1674331.971326%
B1674291.732378%
C1674251.493429%
D167321112.612074%

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 1674 1674 0 0 0.00% 0.00%
B 1674 1674 1 1 0.06% 0.06%
C 1674 1674 0 0 0.00% 0.00%
D 1673 1673 110 110 6.58% 6.58%

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 13 254 2987 58.96 229 226 46.8
A 0 226 2029 38.51 229 226 46.8
A 11 47 2004 37.97 229 226 46.8
B 0 190 12547 285.38 223 218 43.2
B 0 228 11461 260.24 223 218 43.2
B 0 230 6167 137.7 223 218 43.2
C 14 238 34321 685.3 212 212 49.8
C 10 22 30621 610.96 212 212 49.8
C 13 61 1531 26.5 212 212 49.8
D 1 52 763846 14584.68 209 202 52.4
D 6 112 33798 641.63 209 202 52.4
D 8 195 16632 313.78 209 202 52.4

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