ASTROSAT CZTI

Data Quality Report

Orbit 15373

Creation date: 2024-06-27T17:07:29.843486
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_049T01_9000002266_15373cztM0_level2.evt modeM0/AS1A04_049T01_9000002266_15373cztM0_level2_quad_clean.evt
Size (bytes)335,278,08077,466,240
Size319.7 MB 73.9 MB
Events in quadrant A2,442,516514,536
Events in quadrant B2,431,905517,337
Events in quadrant C2,238,422508,627
Events in quadrant D2,726,392481,142

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104912
B0102791
C096061
D0113451

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A46061573.408597%
B46061352.930960%
C4606701.519757%
D46062375.145462%

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 5822 4607 44 44 0.76% 0.96%
B 5822 4607 15 15 0.26% 0.33%
C 5822 4607 0 0 0.00% 0.00%
D 5822 4607 170 170 2.92% 3.69%

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 14 238 160925 1416.95 556 543 113.2
A 14 237 110690 973.13 556 543 113.2
A 15 239 25298 218.71 556 543 113.2
B 4 142 75482 701.63 559 545 106.8
B 4 173 73990 687.66 559 545 106.8
B 8 3 42054 388.65 559 545 106.8
C 3 233 107385 850.18 546 548 125.7
C 13 61 3948 27.06 546 548 125.7
C 7 247 1395 6.74 546 548 125.7
D 2 33 452396 3436.82 538 522 131.5
D 5 222 77408 584.77 538 522 131.5
D 7 38 54239 408.55 538 522 131.5

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