ASTROSAT CZTI

Data Quality Report

Orbit 30145

Creation date: 2024-06-27T20:11:28.093902
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_097T03_9000004336_30145cztM0_level2.evt modeM0/AS1A10_097T03_9000004336_30145cztM0_level2_quad_clean.evt
Size (bytes)1,245,240,000138,720,960
Size1.2 GB 132.3 MB
Events in quadrant A6,155,549883,715
Events in quadrant B9,435,214872,305
Events in quadrant C15,030,395744,547
Events in quadrant D6,268,570855,801

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02460
B02460
C02460
D02460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261522
B0370012
C0530872
D0262192

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A122072061.687556%
B122081871.531782%
C12208390031.946265%
D12208930.761796%

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 13562 12207 76 76 0.56% 0.62%
B 13563 12209 2 2 0.01% 0.02%
C 13563 12208 1209 1209 8.91% 9.90%
D 13563 12210 16 16 0.12% 0.13%

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 455331 1531.63 1471 1440 296.3
A 8 192 23494 74.42 1471 1440 296.3
A 13 254 23289 73.73 1471 1440 296.3
B 6 159 3600126 12848.77 1452 1414 280.1
B 0 190 58132 202.5 1452 1414 280.1
B 12 111 34936 119.69 1452 1414 280.1
C 3 233 9012159 30638.78 1263 1271 294.1
C 14 238 516796 1752.89 1263 1271 294.1
C 14 254 443933 1505.14 1263 1271 294.1
D 8 195 428078 1213.24 1429 1397 351.7
D 12 227 109055 306.12 1429 1397 351.7
D 13 168 86561 242.16 1429 1397 351.7

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