ASTROSAT CZTI

Data Quality Report

Orbit 44065

Creation date: 2024-06-27T22:58:56.676686
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/AS1A13_029T01_9000005940_44065cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44065cztM0_level2_quad_clean.evt
Size (bytes)1,379,664,000345,640,320
Size1.3 GB 329.6 MB
Events in quadrant A14,513,8002,308,789
Events in quadrant B9,497,0662,419,962
Events in quadrant C11,737,4862,235,944
Events in quadrant D13,667,7922,028,875

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04340
B04340
C04340
D04340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0574264
B0434914
C0502274
D0560457

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A213815582.609794%
B213811950.912025%
C213815332.492867%
D2138011495.374181%

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 24566 21385 213 213 0.87% 1.00%
B 24566 21385 0 0 0.00% 0.00%
C 24566 21385 350 350 1.42% 1.64%
D 24565 21384 880 880 3.58% 4.12%

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 10 83 3479732 7107.77 2390 2349 489.2
A 12 227 1228840 2506.95 2390 2349 489.2
A 15 222 348896 708.34 2390 2349 489.2
B 12 111 62569 127.33 2399 2320 473.2
B 11 111 57630 116.89 2399 2320 473.2
B 14 111 56969 115.5 2399 2320 473.2
C 1 241 2024610 3641.88 2336 2351 555.3
C 14 254 463195 829.93 2336 2351 555.3
C 14 96 61492 106.51 2336 2351 555.3
D 13 249 2353787 4111.25 2291 2227 572.0
D 1 52 805948 1405.15 2291 2227 572.0
D 5 235 531820 925.89 2291 2227 572.0

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