ASTROSAT CZTI

Data Quality Report

Orbit 11405

Creation date: 2024-06-27T16:12:27.503483
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_022T04_9000001666_11405cztM0_level2.evt modeM0/AS1A04_022T04_9000001666_11405cztM0_level2_quad_clean.evt
Size (bytes)153,564,48041,313,600
Size146.5 MB 39.4 MB
Events in quadrant A1,162,173277,071
Events in quadrant B1,232,139274,612
Events in quadrant C943,134291,040
Events in quadrant D1,184,807272,611

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A046310
B048410
C038580
D046960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1860321.720430%
B1860693.709677%
C186010.053763%
D1860180.967742%

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 1860 1860 25 25 1.34% 1.34%
B 1860 1860 45 45 2.42% 2.42%
C 1860 1860 0 0 0.00% 0.00%
D 1860 1860 14 14 0.75% 0.75%

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 5 161929 3215.27 245 240 50.3
A 13 210 34090 673.12 245 240 50.3
A 11 29 6187 118.26 245 240 50.3
B 4 239 246566 5402.09 236 231 45.6
B 15 204 33943 739.3 236 231 45.6
B 3 189 18013 389.96 236 231 45.6
C 14 234 5304 89.09 240 241 56.8
C 13 61 1835 28.05 240 241 56.8
C 3 202 644 7.09 240 241 56.8
D 1 52 106301 1835.3 241 235 57.8
D 2 120 67420 1162.53 241 235 57.8
D 10 199 41508 714.16 241 235 57.8

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