ASTROSAT CZTI

Data Quality Report

Orbit 17007

Creation date: 2024-06-27T17:31:00.876315
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/AS1A05_225T02_9000002526_17007cztM0_level2.evt modeM0/AS1A05_225T02_9000002526_17007cztM0_level2_quad_clean.evt
Size (bytes)381,864,96099,426,240
Size364.2 MB 94.8 MB
Events in quadrant A2,304,949685,158
Events in quadrant B2,520,079700,135
Events in quadrant C2,901,242664,187
Events in quadrant D3,512,138624,905

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098751
B0105951
C0117501
D0136381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4804250.520400%
B4804501.040799%
C4804741.540383%
D48043156.557036%

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 6130 4806 0 0 0.00% 0.00%
B 6130 4806 0 0 0.00% 0.00%
C 6130 4806 4 4 0.07% 0.08%
D 6130 4806 235 235 3.83% 4.89%

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 0 226 5295 39.42 599 588 119.4
A 12 194 4421 32.1 599 588 119.4
A 3 137 3934 28.02 599 588 119.4
B 6 36 60351 544.59 597 584 109.7
B 0 189 35404 317.27 597 584 109.7
B 0 229 33675 301.52 597 584 109.7
C 3 233 447241 3434.5 571 575 130.1
C 9 54 123342 943.98 571 575 130.1
C 14 238 90023 687.78 571 575 130.1
D 1 52 1362180 10194.42 558 545 133.6
D 2 234 20144 146.74 558 545 133.6
D 2 152 12158 86.95 558 545 133.6

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