ASTROSAT CZTI

Data Quality Report

Orbit 43129

Creation date: 2024-06-27T22:48:24.790806
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/AS1A09_006T07_9000005852_43129cztM0_level2.fits modeM0/AS1A09_006T07_9000005852_43129cztM0_level2_quad_clean.evt
Size (bytes)334,946,88084,646,080
Size319.4 MB 80.7 MB
Events in quadrant A3,771,672552,160
Events in quadrant B2,937,540586,884
Events in quadrant C2,439,943550,971
Events in quadrant D2,845,538510,101

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145782
B0123152
C0105282
D0121094

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51862675.148477%
B5186510.983417%
C518650.096413%
D5185320.617165%

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 7129 5187 201 201 2.82% 3.88%
B 7129 5187 11 11 0.15% 0.21%
C 7129 5187 0 0 0.00% 0.00%
D 7128 5186 27 27 0.38% 0.52%

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 15 222 651094 5622.9 563 552 115.7
A 10 83 587124 5069.98 563 552 115.7
A 15 237 135573 1167.04 563 552 115.7
B 0 186 505108 4547.37 567 551 111.0
B 5 255 78102 698.94 567 551 111.0
B 0 229 67745 605.59 567 551 111.0
C 15 214 218189 1673.25 555 560 130.1
C 0 239 24511 184.15 555 560 130.1
C 3 233 11203 81.83 555 560 130.1
D 1 52 586130 4265.38 556 540 137.3
D 13 171 53087 382.75 556 540 137.3
D 2 234 25716 183.38 556 540 137.3

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