ASTROSAT CZTI

Data Quality Report

Orbit 29581

Creation date: 2024-06-27T20:05:42.223180
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/AS1A10_093T01_9000004266_29581cztM0_level2.evt modeM0/AS1A10_093T01_9000004266_29581cztM0_level2_quad_clean.evt
Size (bytes)633,199,68098,020,800
Size603.9 MB 93.5 MB
Events in quadrant A3,232,427653,523
Events in quadrant B5,964,830642,832
Events in quadrant C3,536,648610,912
Events in quadrant D5,976,750581,156

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141621
B0225001
C0147881
D0223361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6889460.667731%
B68893525.109595%
C68894216.111192%
D68885067.346109%

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 8334 6890 0 0 0.00% 0.00%
B 8334 6890 107 107 1.28% 1.55%
C 8334 6890 2 2 0.02% 0.03%
D 8333 6889 442 442 5.30% 6.42%

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 13 254 11985 66.52 832 813 167.9
A 3 137 8086 43.31 832 813 167.9
A 12 189 8053 43.11 832 813 167.9
B 0 189 2565634 16401.75 819 796 156.4
B 4 171 112249 712.72 819 796 156.4
B 12 111 19085 116.96 819 796 156.4
C 14 238 232968 1265.5 782 788 183.5
C 14 254 154066 835.44 782 788 183.5
C 3 233 57046 306.63 782 788 183.5
D 13 153 1059199 5632.06 792 772 187.9
D 12 33 667058 3545.41 792 772 187.9
D 7 80 645645 3431.47 792 772 187.9

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