ASTROSAT CZTI

Data Quality Report

Orbit 32094

Creation date: 2024-06-27T20:34:17.382268
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_123T09_9000004654_32094cztM0_level2.evt modeM0/AS1A10_123T09_9000004654_32094cztM0_level2_quad_clean.evt
Size (bytes)196,888,32010,177,920
Size187.8 MB 9.7 MB
Events in quadrant A1,145,16443,473
Events in quadrant B1,739,12140,896
Events in quadrant C1,191,62238,341
Events in quadrant D1,748,42839,246

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106625963
B01759811163
C0113796606
D02349616964

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010763
B010462
C010668
D010763

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082
B072
C071
D071

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2195934.236902%
B18681739.261242%
C21331336.235349%
D18121618.885210%

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 5889 2563 0 0 0.00% 0.00%
B 5872 2132 8 8 0.14% 0.38%
C 5868 2493 2 2 0.03% 0.08%
D 5810 2029 45 45 0.77% 2.22%

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 6 4509 68.78 295 288 61.4
A 13 254 4028 60.95 295 288 61.4
A 3 137 2896 42.5 295 288 61.4
B 6 159 457203 9174.06 244 237 49.8
B 10 245 267787 5371.34 244 237 49.8
B 5 172 21673 430.35 244 237 49.8
C 0 10 65950 1012.68 271 272 64.9
C 14 238 48644 745.84 271 272 64.9
C 4 175 7315 108.6 271 272 64.9
D 8 195 351539 5992.57 239 231 58.6
D 12 79 306639 5226.67 239 231 58.6
D 12 233 65701 1116.78 239 231 58.6

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