ASTROSAT CZTI

Data Quality Report

Orbit 12244

Creation date: 2024-06-27T16:24:22.489789
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/AS1C03_005T01_9000001810_12244cztM0_level2.evt modeM0/AS1C03_005T01_9000001810_12244cztM0_level2_quad_clean.evt
Size (bytes)113,330,88032,086,080
Size108.1 MB 30.6 MB
Events in quadrant A890,988220,870
Events in quadrant B826,693225,923
Events in quadrant C762,870219,868
Events in quadrant D860,584207,171

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036582
B033021
C030941
D034231

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1301151.152959%
B1301261.998463%
C130180.614912%
D1301231.767871%

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 1302 1302 0 0 0.00% 0.00%
B 1302 1302 7 7 0.54% 0.54%
C 1302 1302 2 2 0.15% 0.15%
D 1302 1302 11 11 0.84% 0.84%

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 13 251 46645 1144.23 193 190 40.6
A 1 162 38240 937.21 193 190 40.6
A 1 178 22176 541.54 193 190 40.6
B 4 239 48045 1308.38 190 187 36.6
B 15 201 12555 338.13 190 187 36.6
B 0 214 7409 197.44 190 187 36.6
C 15 208 26750 606.68 188 189 43.8
C 4 175 1480 29.49 188 189 43.8
C 13 61 1331 26.08 188 189 43.8
D 1 52 108838 2408.08 188 183 45.1
D 13 249 11662 254.4 188 183 45.1
D 10 199 6799 146.63 188 183 45.1

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