ASTROSAT CZTI

Data Quality Report

Orbit 06618

Creation date: 2024-06-27T15:09:38.339700
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_164T01_9000000896_06618cztM0_level2.evt modeM0/AS1G06_164T01_9000000896_06618cztM0_level2_quad_clean.evt
Size (bytes)953,593,920152,700,480
Size909.4 MB 145.6 MB
Events in quadrant A5,202,995985,350
Events in quadrant B5,875,659991,438
Events in quadrant C5,032,220983,176
Events in quadrant D11,985,005862,201

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237143
B0254632
C0236482
D0439682

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02360
B02360
C02360
D02360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A115881981.708664%
B115883172.735589%
C115881000.862962%
D11588172914.920608%

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 12693 11590 0 0 0.00% 0.00%
B 12693 11590 48 48 0.38% 0.41%
C 12693 11590 3 3 0.02% 0.03%
D 12693 11590 1327 1327 10.45% 11.45%

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 8 15 74978 273.44 1327 1297 269.5
A 0 226 12611 41.99 1327 1297 269.5
A 12 194 12329 40.94 1327 1297 269.5
B 4 80 218025 858.09 1330 1297 252.6
B 0 219 192983 758.94 1330 1297 252.6
B 4 48 155031 608.68 1330 1297 252.6
C 9 54 14754 45.83 1281 1282 293.9
C 1 16 12364 37.7 1281 1282 293.9
C 13 61 10125 30.08 1281 1282 293.9
D 8 195 3590253 12005.81 1219 1177 298.9
D 2 33 1895814 6337.74 1219 1177 298.9
D 14 34 1356798 4534.68 1219 1177 298.9

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