ASTROSAT CZTI

Data Quality Report

Orbit 24029

Creation date: 2024-06-27T19:01:19.397798
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/AS1A07_165T01_9000003558_24029cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24029cztM0_level2_quad_clean.evt
Size (bytes)488,442,240131,172,480
Size465.8 MB 125.1 MB
Events in quadrant A3,058,620911,746
Events in quadrant B3,509,908916,526
Events in quadrant C3,705,013864,698
Events in quadrant D4,109,552858,587

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126431
B0141911
C0146891
D0163051

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6032871.442308%
B60331011.674126%
C60332914.823471%
D6033961.591248%

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 7262 6033 2 2 0.03% 0.03%
B 7263 6033 4 4 0.06% 0.07%
C 7263 6034 133 133 1.83% 2.20%
D 7263 6034 9 9 0.12% 0.15%

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 13 254 9841 58.23 789 777 155.7
A 0 226 7221 41.4 789 777 155.7
A 0 230 6442 36.39 789 777 155.7
B 0 197 301989 2100.35 779 764 143.4
B 0 189 96474 667.36 779 764 143.4
B 12 111 16179 107.48 779 764 143.4
C 0 239 504445 3002.73 736 741 167.7
C 7 247 204477 1214.53 736 741 167.7
C 14 238 120873 716.14 736 741 167.7
D 8 195 874875 4823.53 760 739 181.2
D 7 238 266848 1468.4 760 739 181.2
D 1 52 36115 195.21 760 739 181.2

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