ASTROSAT CZTI

Data Quality Report

Orbit 14305

Creation date: 2024-06-27T16:53:15.838573
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/AS1A04_130T03_9000002108_14305cztM0_level2.evt modeM0/AS1A04_130T03_9000002108_14305cztM0_level2_quad_clean.evt
Size (bytes)705,888,000105,523,200
Size673.2 MB 100.6 MB
Events in quadrant A4,871,140651,941
Events in quadrant B5,227,881653,212
Events in quadrant C5,197,209629,888
Events in quadrant D5,465,354628,690

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01880
B01880
C01880
D01880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199263
B0213152
C0204692
D0222662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A91013694.054500%
B91014354.779695%
C91012402.637073%
D91012732.999670%

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 29173 9104 38 38 0.13% 0.42%
B 29173 9104 42 42 0.14% 0.46%
C 29173 9104 0 0 0.00% 0.00%
D 29173 9105 53 53 0.18% 0.58%

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 8 15 145168 594.39 1172 1141 242.3
A 13 210 133578 546.56 1172 1141 242.3
A 12 189 53172 214.73 1172 1141 242.3
B 0 229 349395 1525.42 1160 1129 228.3
B 10 245 112394 487.34 1160 1129 228.3
B 4 142 53601 229.83 1160 1129 228.3
C 3 233 775539 2910.72 1132 1140 266.1
C 13 61 8181 26.46 1132 1140 266.1
C 10 22 6450 19.96 1132 1140 266.1
D 5 222 546272 1996.39 1141 1113 273.1
D 12 110 327629 1195.71 1141 1113 273.1
D 2 152 124846 453.11 1141 1113 273.1

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