ASTROSAT CZTI

Data Quality Report

Orbit 14806

Creation date: 2024-06-27T16:59:55.733697
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_130T03_9000002186_14806cztM0_level2.evt modeM0/AS1A04_130T03_9000002186_14806cztM0_level2_quad_clean.evt
Size (bytes)132,696,00012,297,600
Size126.5 MB 11.7 MB
Events in quadrant A960,58765,844
Events in quadrant B1,013,05166,916
Events in quadrant C1,019,81863,672
Events in quadrant D918,92562,100

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039432
B042481
C043251
D036461

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1530231.503268%
B1530281.830065%
C1530150.980392%
D1530261.699346%

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 1531 1531 3 3 0.20% 0.20%
B 1531 1531 0 0 0.00% 0.00%
C 1531 1531 0 0 0.00% 0.00%
D 1531 1531 8 8 0.52% 0.52%

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 14 237 34217 705.35 236 231 48.2
A 12 189 18397 377.02 236 231 48.2
A 0 226 2139 39.6 236 231 48.2
B 0 219 63426 1410.97 231 227 44.8
B 3 64 10738 234.67 231 227 44.8
B 3 209 8881 193.21 231 227 44.8
C 3 233 140732 2740.41 220 221 51.3
C 0 207 18953 365.33 220 221 51.3
C 7 247 1768 30.17 220 221 51.3
D 10 70 21222 385.25 225 219 54.5
D 13 104 18238 330.52 225 219 54.5
D 13 249 9245 165.56 225 219 54.5

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