ASTROSAT CZTI

Data Quality Report

Orbit 30199

Creation date: 2024-06-27T20:12:08.704600
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_071T09_9000004344_30199cztM0_level2.evt modeM0/AS1A10_071T09_9000004344_30199cztM0_level2_quad_clean.evt
Size (bytes)879,543,36089,311,680
Size838.8 MB 85.2 MB
Events in quadrant A4,313,748550,403
Events in quadrant B6,526,251550,203
Events in quadrant C9,951,358501,113
Events in quadrant D5,276,147515,618

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181242
B0258052
C0355702
D0208122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84453504.144464%
B84455015.932504%
C8445137916.329189%
D84453704.381291%

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 9040 8447 9 9 0.10% 0.11%
B 9040 8447 0 0 0.00% 0.00%
C 9040 8446 489 489 5.41% 5.79%
D 9040 8447 173 173 1.91% 2.05%

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 13 112804 506.0 1084 1060 220.8
A 13 254 14121 59.14 1084 1060 220.8
A 3 137 11714 48.24 1084 1060 220.8
B 6 159 2335178 11018.3 1066 1032 211.8
B 12 111 27009 122.62 1066 1032 211.8
B 11 111 24885 112.6 1066 1032 211.8
C 3 233 5877332 24825.12 999 1002 236.7
C 14 238 157345 660.49 999 1002 236.7
C 2 114 19890 79.79 999 1002 236.7
D 13 104 471561 1873.13 1040 1013 251.2
D 7 223 368747 1463.86 1040 1013 251.2
D 8 195 300352 1191.59 1040 1013 251.2

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