ASTROSAT CZTI

Data Quality Report

Orbit 05620

Creation date: 2024-06-27T14:57:43.043523
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/AS1G06_132T01_9000000728_05620cztM0_level2.evt modeM0/AS1G06_132T01_9000000728_05620cztM0_level2_quad_clean.evt
Size (bytes)218,485,44036,593,280
Size208.4 MB 34.9 MB
Events in quadrant A1,541,957222,421
Events in quadrant B1,701,332205,099
Events in quadrant C1,533,731220,204
Events in quadrant D1,600,026212,975

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155918530
B01738410025
C0155778472
D0162468987

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083
B082
C084
D094

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015280
B015379
C015480
D015486

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3483120.344531%
B3345240.717489%
C350920.056996%
D347930.086232%

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 7888 4885 0 0 0.00% 0.00%
B 7827 4697 0 0 0.00% 0.00%
C 7824 4849 0 0 0.00% 0.00%
D 7848 4801 0 0 0.00% 0.00%

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 14 4745 52.01 398 389 83.8
A 12 194 3950 42.51 398 389 83.8
A 0 226 3842 41.23 398 389 83.8
B 15 204 164172 2179.9 383 372 75.1
B 11 51 31375 412.6 383 372 75.1
B 12 111 6869 86.46 383 372 75.1
C 1 16 11860 126.15 388 389 90.9
C 10 22 3925 38.89 388 389 90.9
C 13 61 3176 30.65 388 389 90.9
D 2 136 50634 522.99 386 374 96.1
D 10 15 35319 363.63 386 374 96.1
D 2 152 25717 263.71 386 374 96.1

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