ASTROSAT CZTI

Data Quality Report

Orbit 33963

Creation date: 2024-06-27T20:54:55.351832
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/AS1A11_058T01_9000004854_33963cztM0_level2.evt modeM0/AS1A11_058T01_9000004854_33963cztM0_level2_quad_clean.evt
Size (bytes)196,925,76038,344,320
Size187.8 MB 36.6 MB
Events in quadrant A1,831,681260,282
Events in quadrant B1,277,810261,771
Events in quadrant C1,114,595249,965
Events in quadrant D1,599,615240,815

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068840
B050700
C044960
D061320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2040261.274510%
B2040663.235294%
C2040452.205882%
D2040864.215686%

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 2040 2040 7 7 0.34% 0.34%
B 2040 2040 39 39 1.91% 1.91%
C 2040 2040 30 30 1.47% 1.47%
D 2040 2040 59 59 2.89% 2.89%

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 15 169 911848 18952.01 234 229 48.1
A 10 83 7970 160.93 234 229 48.1
A 13 6 4930 97.73 234 229 48.1
B 0 229 156238 3471.18 231 226 44.9
B 5 172 100061 2221.27 231 226 44.9
B 3 112 46047 1019.49 231 226 44.9
C 0 10 125475 2345.97 226 227 53.4
C 15 214 90997 1700.17 226 227 53.4
C 12 250 7345 133.32 226 227 53.4
D 8 195 290789 4603.15 226 221 63.1
D 13 249 181635 2873.94 226 221 63.1
D 12 233 66649 1052.35 226 221 63.1

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