ASTROSAT CZTI

Data Quality Report

Orbit 06179

Creation date: 2024-06-27T15:03:49.643973
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/AS1A02_152T01_9000000806_06179cztM0_level2.evt modeM0/AS1A02_152T01_9000000806_06179cztM0_level2_quad_clean.evt
Size (bytes)150,413,76012,585,600
Size143.4 MB 12.0 MB
Events in quadrant A1,117,84863,326
Events in quadrant B1,199,31763,721
Events in quadrant C1,078,21361,660
Events in quadrant D1,035,46760,058

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045602
B047031
C043411
D041871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1796713.953229%
B17961086.013363%
C1796452.505568%
D1796512.839644%

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 3096 1796 3 3 0.10% 0.17%
B 3096 1796 34 34 1.10% 1.89%
C 3096 1797 1 1 0.03% 0.06%
D 3096 1796 5 5 0.16% 0.28%

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 8 15 102121 1860.47 260 255 54.8
A 15 234 14585 261.72 260 255 54.8
A 0 226 2484 40.71 260 255 54.8
B 3 64 178337 3451.58 259 254 51.6
B 0 219 7299 136.55 259 254 51.6
B 12 111 4681 85.8 259 254 51.6
C 12 16 97678 1637.0 249 250 59.5
C 1 16 7924 128.94 249 250 59.5
C 13 61 1950 28.56 249 250 59.5
D 2 63 39567 632.37 249 242 62.2
D 5 97 18963 301.04 249 242 62.2
D 8 195 15457 244.67 249 242 62.2

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