ASTROSAT CZTI

Data Quality Report

Orbit 06310

Creation date: 2024-06-27T15:05:26.911903
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/AS1A02_070T01_9000000832_06310cztM0_level2.evt modeM0/AS1A02_070T01_9000000832_06310cztM0_level2_quad_clean.evt
Size (bytes)1,603,114,560254,528,640
Size1.5 GB 242.7 MB
Events in quadrant A10,473,6091,631,607
Events in quadrant B11,596,7291,654,959
Events in quadrant C8,548,1431,661,562
Events in quadrant D16,712,0311,512,701

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0470
B0470
C0470
D0470

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03680
B03680
C03680
D03680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0423315
B0462584
C0377294
D0620774

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A181103101.711761%
B1811010005.521811%
C181102121.170624%
D18110195610.800663%

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 22710 18110 9 9 0.04% 0.05%
B 22710 18110 521 521 2.29% 2.88%
C 22710 18110 2 2 0.01% 0.01%
D 22710 18110 1476 1476 6.50% 8.15%

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 1472523 3270.3 2237 2190 449.6
A 13 251 199072 437.9 2237 2190 449.6
A 14 111 157780 346.06 2237 2190 449.6
B 3 64 2630105 6226.81 2233 2183 422.0
B 4 81 104317 242.0 2233 2183 422.0
B 10 213 97278 225.33 2233 2183 422.0
C 1 16 54139 104.85 2165 2184 495.5
C 9 16 32263 60.7 2165 2184 495.5
C 13 61 17007 29.91 2165 2184 495.5
D 2 63 5573620 10831.58 2119 2056 514.4
D 12 220 1852128 3596.69 2119 2056 514.4
D 12 110 495529 959.35 2119 2056 514.4

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