ASTROSAT CZTI

Data Quality Report

Orbit 05703

Creation date: 2024-06-27T14:58:09.998247
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_098T01_9000000736_05703cztM0_level2.evt modeM0/AS1A02_098T01_9000000736_05703cztM0_level2_quad_clean.evt
Size (bytes)465,984,00093,974,400
Size444.4 MB 89.6 MB
Events in quadrant A3,170,443607,938
Events in quadrant B3,529,965607,829
Events in quadrant C3,190,886604,612
Events in quadrant D3,786,455579,270

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134673
B0144322
C0137152
D0154562

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63971201.875879%
B63971081.688291%
C6397831.297483%
D63971402.188526%

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 7657 6398 1 1 0.01% 0.02%
B 7657 6398 5 5 0.07% 0.08%
C 7657 6398 10 10 0.13% 0.16%
D 7657 6398 29 29 0.38% 0.45%

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 0 31 9217 50.33 821 802 167.2
A 12 194 8155 43.97 821 802 167.2
A 0 226 8004 43.07 821 802 167.2
B 15 204 156042 1006.43 816 797 154.3
B 0 214 96996 623.64 816 797 154.3
B 0 219 36084 228.76 816 797 154.3
C 3 9 83556 461.07 784 789 179.5
C 1 241 24437 131.74 784 789 179.5
C 1 16 14228 74.86 784 789 179.5
D 2 152 276827 1436.27 793 771 192.2
D 8 195 266964 1384.96 793 771 192.2
D 12 233 59394 305.01 793 771 192.2

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