ASTROSAT CZTI

Data Quality Report

Orbit 10348

Creation date: 2024-06-27T15:58:12.327115
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/AS1C02_038T02_9000001490_10348cztM0_level2.evt modeM0/AS1C02_038T02_9000001490_10348cztM0_level2_quad_clean.evt
Size (bytes)346,253,76072,630,720
Size330.2 MB 69.3 MB
Events in quadrant A2,420,585448,409
Events in quadrant B2,423,770449,786
Events in quadrant C2,374,602453,537
Events in quadrant D2,926,216497,713

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02210
B02412
C02412
D0208

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243134
B0244132
C0244133
D0235124

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02385913889
B02606416169
C02503315097
D02596913948

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4828501.035626%
B4714561.187951%
C4805400.832466%
D5555550.990099%

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 7219 5709 0 0 0.00% 0.00%
B 7218 5597 0 0 0.00% 0.00%
C 7219 5681 0 0 0.00% 0.00%
D 7218 5826 2 2 0.03% 0.03%

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 32037 256.52 614 602 122.5
A 13 251 22071 175.19 614 602 122.5
A 0 226 5627 41.01 614 602 122.5
B 11 51 51129 452.73 594 579 111.7
B 4 239 42364 374.23 594 579 111.7
B 0 214 14891 128.18 594 579 111.7
C 14 234 12793 87.58 605 608 139.1
C 13 61 4328 26.74 605 608 139.1
C 4 175 2546 13.93 605 608 139.1
D 8 195 91152 556.96 695 680 162.4
D 2 33 68396 416.87 695 680 162.4
D 2 136 37964 229.53 695 680 162.4

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